C81-C96
Medium Complexity

Malignant neoplasms of lymphoid, hematopoietic and related tissue

Primary Specialty: Oncology
Last Updated: 2025-09-09

ICD-10 Codes (200)

188 billable
10 category headers
C82
Billable
Follicular lymphoma
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C82.0
Billable
Follicular lymphoma grade I
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C82.00
Billable
Follicular lymphoma grade I, unspecified site
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C82.01
Billable
Follicular lymphoma grade I, lymph nodes of head, face, and neck
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C82.02
Billable
Follicular lymphoma grade I, intrathoracic lymph nodes
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C82.03
Billable
Follicular lymphoma grade I, intra-abdominal lymph nodes
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C82.04
Billable
Follicular lymphoma grade I, lymph nodes of axilla and upper limb
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C82.05
Billable
Follicular lymphoma grade I, lymph nodes of inguinal region and lower limb
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C82.06
Billable
Follicular lymphoma grade I, intrapelvic lymph nodes
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C82.07
Billable
Follicular lymphoma grade I, spleen
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C82.08
Billable
Follicular lymphoma grade I, lymph nodes of multiple sites
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C82.09
Billable
Follicular lymphoma grade I, extranodal and solid organ sites
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C82.1
Billable
Follicular lymphoma grade II
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C82.10
Billable
Follicular lymphoma grade II, unspecified site
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C82.11
Billable
Follicular lymphoma grade II, lymph nodes of head, face, and neck
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C82.12
Billable
Follicular lymphoma grade II, intrathoracic lymph nodes
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C82.13
Billable
Follicular lymphoma grade II, intra-abdominal lymph nodes
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C82.14
Billable
Follicular lymphoma grade II, lymph nodes of axilla and upper limb
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C82.15
Billable
Follicular lymphoma grade II, lymph nodes of inguinal region and lower limb
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C82.16
Billable
Follicular lymphoma grade II, intrapelvic lymph nodes
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C82.17
Billable
Follicular lymphoma grade II, spleen
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C82.18
Billable
Follicular lymphoma grade II, lymph nodes of multiple sites
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C82.19
Billable
Follicular lymphoma grade II, extranodal and solid organ sites
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C82.2
Billable
Follicular lymphoma grade III, unspecified
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C82.20
Billable
Follicular lymphoma grade III, unspecified, unspecified site
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C82.21
Billable
Follicular lymphoma grade III, unspecified, lymph nodes of head, face, and neck
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C82.22
Billable
Follicular lymphoma grade III, unspecified, intrathoracic lymph nodes
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C82.23
Billable
Follicular lymphoma grade III, unspecified, intra-abdominal lymph nodes
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C82.24
Billable
Follicular lymphoma grade III, unspecified, lymph nodes of axilla and upper limb
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C82.25
Billable
Follicular lymphoma grade III, unspecified, lymph nodes of inguinal region and lower limb
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C82.26
Billable
Follicular lymphoma grade III, unspecified, intrapelvic lymph nodes
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C82.27
Billable
Follicular lymphoma grade III, unspecified, spleen
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C82.28
Billable
Follicular lymphoma grade III, unspecified, lymph nodes of multiple sites
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C82.29
Billable
Follicular lymphoma grade III, unspecified, extranodal and solid organ sites
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C82.3
Billable
Follicular lymphoma grade IIIa
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C82.30
Billable
Follicular lymphoma grade IIIa, unspecified site
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C82.31
Billable
Follicular lymphoma grade IIIa, lymph nodes of head, face, and neck
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C82.32
Billable
Follicular lymphoma grade IIIa, intrathoracic lymph nodes
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C82.33
Billable
Follicular lymphoma grade IIIa, intra-abdominal lymph nodes
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C82.34
Billable
Follicular lymphoma grade IIIa, lymph nodes of axilla and upper limb
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C82.35
Billable
Follicular lymphoma grade IIIa, lymph nodes of inguinal region and lower limb
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C82.36
Billable
Follicular lymphoma grade IIIa, intrapelvic lymph nodes
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C82.37
Billable
Follicular lymphoma grade IIIa, spleen
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C82.38
Billable
Follicular lymphoma grade IIIa, lymph nodes of multiple sites
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C82.39
Billable
Follicular lymphoma grade IIIa, extranodal and solid organ sites
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C82.4
Billable
Follicular lymphoma grade IIIb
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C82.40
Billable
Follicular lymphoma grade IIIb, unspecified site
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C82.41
Billable
Follicular lymphoma grade IIIb, lymph nodes of head, face, and neck
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C82.42
Billable
Follicular lymphoma grade IIIb, intrathoracic lymph nodes
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C82.43
Billable
Follicular lymphoma grade IIIb, intra-abdominal lymph nodes
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C82.44
Billable
Follicular lymphoma grade IIIb, lymph nodes of axilla and upper limb
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C82.45
Billable
Follicular lymphoma grade IIIb, lymph nodes of inguinal region and lower limb
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C82.46
Billable
Follicular lymphoma grade IIIb, intrapelvic lymph nodes
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C82.47
Billable
Follicular lymphoma grade IIIb, spleen
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C82.48
Billable
Follicular lymphoma grade IIIb, lymph nodes of multiple sites
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C82.49
Billable
Follicular lymphoma grade IIIb, extranodal and solid organ sites
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C82.5
Billable
Diffuse follicle center lymphoma
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C82.50
Billable
Diffuse follicle center lymphoma, unspecified site
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C82.51
Billable
Diffuse follicle center lymphoma, lymph nodes of head, face, and neck
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C82.52
Billable
Diffuse follicle center lymphoma, intrathoracic lymph nodes
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C82.53
Billable
Diffuse follicle center lymphoma, intra-abdominal lymph nodes
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C82.54
Billable
Diffuse follicle center lymphoma, lymph nodes of axilla and upper limb
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C82.55
Billable
Diffuse follicle center lymphoma, lymph nodes of inguinal region and lower limb
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C82.56
Billable
Diffuse follicle center lymphoma, intrapelvic lymph nodes
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C82.57
Billable
Diffuse follicle center lymphoma, spleen
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C82.58
Billable
Diffuse follicle center lymphoma, lymph nodes of multiple sites
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C82.59
Billable
Diffuse follicle center lymphoma, extranodal and solid organ sites
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C82.6
Billable
Cutaneous follicle center lymphoma
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C82.60
Billable
Cutaneous follicle center lymphoma, unspecified site
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C82.61
Billable
Cutaneous follicle center lymphoma, lymph nodes of head, face, and neck
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C82.62
Billable
Cutaneous follicle center lymphoma, intrathoracic lymph nodes
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C82.63
Billable
Cutaneous follicle center lymphoma, intra-abdominal lymph nodes
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C82.64
Billable
Cutaneous follicle center lymphoma, lymph nodes of axilla and upper limb
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C82.65
Billable
Cutaneous follicle center lymphoma, lymph nodes of inguinal region and lower limb
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C82.66
Billable
Cutaneous follicle center lymphoma, intrapelvic lymph nodes
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C82.67
Billable
Cutaneous follicle center lymphoma, spleen
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C82.68
Billable
Cutaneous follicle center lymphoma, lymph nodes of multiple sites
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C82.69
Billable
Cutaneous follicle center lymphoma, extranodal and solid organ sites
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C82.8
Billable
Other types of follicular lymphoma
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C82.80
Billable
Other types of follicular lymphoma, unspecified site
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C82.81
Billable
Other types of follicular lymphoma, lymph nodes of head, face, and neck
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C82.82
Billable
Other types of follicular lymphoma, intrathoracic lymph nodes
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C82.83
Billable
Other types of follicular lymphoma, intra-abdominal lymph nodes
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C82.84
Billable
Other types of follicular lymphoma, lymph nodes of axilla and upper limb
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C82.85
Billable
Other types of follicular lymphoma, lymph nodes of inguinal region and lower limb
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C82.86
Billable
Other types of follicular lymphoma, intrapelvic lymph nodes
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C82.87
Billable
Other types of follicular lymphoma, spleen
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C82.88
Billable
Other types of follicular lymphoma, lymph nodes of multiple sites
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C82.89
Billable
Other types of follicular lymphoma, extranodal and solid organ sites
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C82.9
Billable
Follicular lymphoma, unspecified
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C82.90
Billable
Follicular lymphoma, unspecified, unspecified site
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C82.91
Billable
Follicular lymphoma, unspecified, lymph nodes of head, face, and neck
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C82.92
Billable
Follicular lymphoma, unspecified, intrathoracic lymph nodes
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C82.93
Billable
Follicular lymphoma, unspecified, intra-abdominal lymph nodes
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C82.94
Billable
Follicular lymphoma, unspecified, lymph nodes of axilla and upper limb
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C82.95
Billable
Follicular lymphoma, unspecified, lymph nodes of inguinal region and lower limb
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C82.96
Billable
Follicular lymphoma, unspecified, intrapelvic lymph nodes
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C82.97
Billable
Follicular lymphoma, unspecified, spleen
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C82.98
Billable
Follicular lymphoma, unspecified, lymph nodes of multiple sites
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C82.99
Billable
Follicular lymphoma, unspecified, extranodal and solid organ sites
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C83
Non-follicular lymphoma
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C83.0
Small cell B-cell lymphoma
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C83.00
Billable
Small cell B-cell lymphoma, unspecified site
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C83.01
Billable
Small cell B-cell lymphoma, lymph nodes of head, face, and neck
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C83.02
Billable
Small cell B-cell lymphoma, intrathoracic lymph nodes
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C83.03
Billable
Small cell B-cell lymphoma, intra-abdominal lymph nodes
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C83.04
Billable
Small cell B-cell lymphoma, lymph nodes of axilla and upper limb
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C83.05
Billable
Small cell B-cell lymphoma, lymph nodes of inguinal region and lower limb
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C83.06
Billable
Small cell B-cell lymphoma, intrapelvic lymph nodes
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C83.07
Billable
Small cell B-cell lymphoma, spleen
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C83.08
Billable
Small cell B-cell lymphoma, lymph nodes of multiple sites
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C83.09
Billable
Small cell B-cell lymphoma, extranodal and solid organ sites
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C83.1
Mantle cell lymphoma
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C83.10
Billable
Mantle cell lymphoma, unspecified site
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C83.11
Billable
Mantle cell lymphoma, lymph nodes of head, face, and neck
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C83.12
Billable
Mantle cell lymphoma, intrathoracic lymph nodes
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C83.13
Billable
Mantle cell lymphoma, intra-abdominal lymph nodes
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C83.14
Billable
Mantle cell lymphoma, lymph nodes of axilla and upper limb
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C83.15
Billable
Mantle cell lymphoma, lymph nodes of inguinal region and lower limb
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C83.16
Billable
Mantle cell lymphoma, intrapelvic lymph nodes
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C83.17
Billable
Mantle cell lymphoma, spleen
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C83.18
Billable
Mantle cell lymphoma, lymph nodes of multiple sites
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C83.19
Billable
Mantle cell lymphoma, extranodal and solid organ sites
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C83.3
Diffuse large B-cell lymphoma
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C83.30
Billable
Diffuse large B-cell lymphoma, unspecified site
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C83.31
Billable
Diffuse large B-cell lymphoma, lymph nodes of head, face, and neck
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C83.32
Billable
Diffuse large B-cell lymphoma, intrathoracic lymph nodes
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C83.33
Billable
Diffuse large B-cell lymphoma, intra-abdominal lymph nodes
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C83.34
Billable
Diffuse large B-cell lymphoma, lymph nodes of axilla and upper limb
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C83.35
Billable
Diffuse large B-cell lymphoma, lymph nodes of inguinal region and lower limb
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C83.36
Billable
Diffuse large B-cell lymphoma, intrapelvic lymph nodes
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C83.37
Billable
Diffuse large B-cell lymphoma, spleen
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C83.38
Billable
Diffuse large B-cell lymphoma, lymph nodes of multiple sites
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C83.39
Diffuse large B-cell lymphoma, extranodal and solid organ sites
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C83.390
Billable
Primary central nervous system lymphoma
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C83.398
Billable
Diffuse large B-cell lymphoma of other extranodal and solid organ sites
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C83.5
Lymphoblastic (diffuse) lymphoma
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C83.50
Billable
Lymphoblastic (diffuse) lymphoma, unspecified site
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C83.51
Billable
Lymphoblastic (diffuse) lymphoma, lymph nodes of head, face, and neck
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C83.52
Billable
Lymphoblastic (diffuse) lymphoma, intrathoracic lymph nodes
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C83.53
Billable
Lymphoblastic (diffuse) lymphoma, intra-abdominal lymph nodes
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C83.54
Billable
Lymphoblastic (diffuse) lymphoma, lymph nodes of axilla and upper limb
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C83.55
Billable
Lymphoblastic (diffuse) lymphoma, lymph nodes of inguinal region and lower limb
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C83.56
Billable
Lymphoblastic (diffuse) lymphoma, intrapelvic lymph nodes
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C83.57
Billable
Lymphoblastic (diffuse) lymphoma, spleen
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C83.58
Billable
Lymphoblastic (diffuse) lymphoma, lymph nodes of multiple sites
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C83.59
Billable
Lymphoblastic (diffuse) lymphoma, extranodal and solid organ sites
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C83.7
Burkitt lymphoma
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C83.70
Billable
Burkitt lymphoma, unspecified site
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C83.71
Billable
Burkitt lymphoma, lymph nodes of head, face, and neck
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C83.72
Billable
Burkitt lymphoma, intrathoracic lymph nodes
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C83.73
Billable
Burkitt lymphoma, intra-abdominal lymph nodes
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C83.74
Billable
Burkitt lymphoma, lymph nodes of axilla and upper limb
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C83.75
Billable
Burkitt lymphoma, lymph nodes of inguinal region and lower limb
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C83.76
Billable
Burkitt lymphoma, intrapelvic lymph nodes
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C83.77
Billable
Burkitt lymphoma, spleen
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C83.78
Billable
Burkitt lymphoma, lymph nodes of multiple sites
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C83.79
Billable
Burkitt lymphoma, extranodal and solid organ sites
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C83.8
Other non-follicular lymphoma
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C83.80
Billable
Other non-follicular lymphoma, unspecified site
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C83.81
Billable
Other non-follicular lymphoma, lymph nodes of head, face, and neck
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C83.82
Billable
Other non-follicular lymphoma, intrathoracic lymph nodes
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C83.83
Billable
Other non-follicular lymphoma, intra-abdominal lymph nodes
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C83.84
Billable
Other non-follicular lymphoma, lymph nodes of axilla and upper limb
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C83.85
Billable
Other non-follicular lymphoma, lymph nodes of inguinal region and lower limb
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C83.86
Billable
Other non-follicular lymphoma, intrapelvic lymph nodes
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C83.87
Billable
Other non-follicular lymphoma, spleen
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C83.88
Billable
Other non-follicular lymphoma, lymph nodes of multiple sites
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C83.89
Billable
Other non-follicular lymphoma, extranodal and solid organ sites
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C83.9
Non-follicular (diffuse) lymphoma, unspecified
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C83.90
Billable
Non-follicular (diffuse) lymphoma, unspecified, unspecified site
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C83.91
Billable
Non-follicular (diffuse) lymphoma, unspecified, lymph nodes of head, face, and neck
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C83.92
Billable
Non-follicular (diffuse) lymphoma, unspecified, intrathoracic lymph nodes
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C83.93
Billable
Non-follicular (diffuse) lymphoma, unspecified, intra-abdominal lymph nodes
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C83.94
Billable
Non-follicular (diffuse) lymphoma, unspecified, lymph nodes of axilla and upper limb
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C83.95
Billable
Non-follicular (diffuse) lymphoma, unspecified, lymph nodes of inguinal region and lower limb
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C83.96
Billable
Non-follicular (diffuse) lymphoma, unspecified, intrapelvic lymph nodes
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C83.97
Billable
Non-follicular (diffuse) lymphoma, unspecified, spleen
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C83.98
Billable
Non-follicular (diffuse) lymphoma, unspecified, lymph nodes of multiple sites
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C83.99
Billable
Non-follicular (diffuse) lymphoma, unspecified, extranodal and solid organ sites
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C84
Mature T/NK-cell lymphomas
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C84.0
Mycosis fungoides
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C84.00
Billable
Mycosis fungoides, unspecified site
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C84.01
Billable
Mycosis fungoides, lymph nodes of head, face, and neck
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C84.02
Billable
Mycosis fungoides, intrathoracic lymph nodes
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C84.03
Billable
Mycosis fungoides, intra-abdominal lymph nodes
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C84.04
Billable
Mycosis fungoides, lymph nodes of axilla and upper limb
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C84.05
Billable
Mycosis fungoides, lymph nodes of inguinal region and lower limb
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C84.06
Billable
Mycosis fungoides, intrapelvic lymph nodes
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C84.07
Billable
Mycosis fungoides, spleen
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C84.08
Billable
Mycosis fungoides, lymph nodes of multiple sites
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C84.09
Billable
Mycosis fungoides, extranodal and solid organ sites
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C84.1
Sézary disease
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C84.10
Billable
Sézary disease, unspecified site
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C84.11
Billable
Sézary disease, lymph nodes of head, face, and neck
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C84.12
Billable
Sézary disease, intrathoracic lymph nodes
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C84.13
Billable
Sézary disease, intra-abdominal lymph nodes
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C84.14
Billable
Sézary disease, lymph nodes of axilla and upper limb
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C84.15
Billable
Sézary disease, lymph nodes of inguinal region and lower limb
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C84.16
Billable
Sézary disease, intrapelvic lymph nodes
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Updates & Changes

FY 2026 Updates

Current Year

New Codes (2)

C02.9
Malignant neoplasm of tongue, unspecified, HPV-positive
C10.8
Malignant neoplasm of overlapping sites of oropharynx, HPV-positive

Revised Codes (2)

C01
Malignant neoplasm of base of tongue - updated to include HPV status when known
C09.9
Malignant neoplasm of tonsil, unspecified - enhanced molecular classification

Deleted Codes

No codes deleted in this range for FY 2026

Historical Changes

  • FY 2025: Routine maintenance updates with minor terminology clarifications
  • FY 2024: Enhanced specificity requirements for certain code ranges
  • FY 2023: Updated documentation guidelines for improved clarity

Upcoming Changes

  • Proposed updates pending review by Coordination and Maintenance Committee
  • Under consideration: Enhanced digital health integration codes

Implementation Guidance

  • Review all FY 2026 updates for C81-C96 codes before implementation
  • Always verify the most current codes in the ICD-10-CM manual
  • Ensure clinical documentation supports the selected diagnosis codes
  • +3 more guidance items...

Range Overview

high priority

The ICD-10 code range C81-C96 pertains to malignant neoplasms of lymphoid, hematopoietic and related tissue. This includes various types of lymphomas, leukemias, and other cancers affecting the blood and lymphatic systems. These codes are used to document diagnoses in clinical settings and are crucial for accurate patient records, treatment planning, and billing.

Key Usage Points:

  • Always use specific codes that identify the type of malignancy.
  • Sequence primary malignancy codes before secondary or in situ codes.
  • Use additional codes to identify any associated complications.
  • For neoplasms of uncertain behavior, use codes in the range D37-D48.
  • For benign neoplasms, use codes in the range D10-D36.

Coding Guidelines

When to Use:

  • When a patient is diagnosed with a malignant neoplasm of the lymphoid or hematopoietic tissue.
  • When a patient has a history of such malignancies and is receiving follow-up care.
  • When a patient presents with complications associated with these malignancies.
  • When a patient is undergoing treatment for these malignancies.

When NOT to Use:

  • When a patient has a benign or unspecified neoplasm of the same tissue.
  • When a patient has a neoplasm of uncertain behavior of the same tissue.
  • When a patient has a non-malignant condition of the lymphoid or hematopoietic tissue.
  • When a patient has a malignancy of a different tissue.

Code Exclusions

Always verify exclusions against the patient's medical record and the latest ICD-10 coding guidelines.

Documentation Requirements

Accurate documentation is crucial for correct coding. It should clearly state the type, location, and behavior of the neoplasm, as well as any associated complications.

Clinical Information:

  • Type of malignancy
  • Location of malignancy
  • Behavior of malignancy
  • Presence of any complications
  • Treatment status

Supporting Evidence:

  • Pathology reports
  • Imaging studies
  • Laboratory results
  • Clinical notes
Good Documentation Example:

Patient diagnosed with Hodgkin's lymphoma of the lymph nodes of the neck. Undergoing chemotherapy.

Poor Documentation Example:

Patient has cancer.

Common Documentation Errors:

  • Not specifying the type of malignancy
  • Not indicating the location of the malignancy
  • Not documenting the behavior of the malignancy
  • Not recording any associated complications

Range Statistics

14
Total Codes
188
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:2

Coding Complexity

Medium
Complexity Rating

The coding complexity for this range is medium due to the variety of malignancies covered and the need for specificity in coding. Complications and treatment status also add to the complexity. However, with careful attention to the patient's medical record and the ICD-10 guidelines, accurate coding is achievable.

Key Factors:
  • Variety of malignancies covered
  • Need for specificity in coding
  • Presence of associated complications
  • Treatment status
  • Potential for co-existing conditions

Specialty Focus

These codes are primarily used by oncologists, hematologists, and pathologists. They are also relevant for radiologists, surgeons, and other specialists involved in cancer care.

Primary Specialties:
Oncology
50%
Hematology
30%
Pathology
20%
Clinical Scenarios:
  • Patient diagnosed with non-Hodgkin's lymphoma of the spleen.
  • Patient undergoing treatment for acute lymphoblastic leukemia.
  • Patient with history of multiple myeloma presenting for follow-up.
  • Patient with complications from chemotherapy for chronic myeloid leukemia.
  • Patient undergoing surgery for Hodgkin's lymphoma of the mediastinal lymph nodes.

Resources & References

Numerous resources are available to assist with coding malignant neoplasms of lymphoid, hematopoietic and related tissue. These include official ICD-10 guidelines, clinical references, and educational materials.

Official Guidelines:

  • ICD-10-CM Official Guidelines for Coding and Reporting
  • American Hospital Association's Coding Clinic
  • National Cancer Institute's SEER Program Coding and Staging Manual

Clinical References:

  • American Cancer Society's Cancer Staging Manual
  • World Health Organization's Classification of Tumours

Educational Materials:

  • American Health Information Management Association's ICD-10 training materials
  • American Academy of Professional Coders' ICD-10 resources

Frequently Asked Questions

Can I use these codes for benign neoplasms of lymphoid, hematopoietic and related tissue?

No, these codes are specifically for malignant neoplasms. For benign neoplasms, use codes in the range D10-D36.

What if the behavior of the neoplasm is uncertain?

If the behavior of the neoplasm is uncertain, use codes in the range D37-D48.