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v1.0.0
ICD-10 Guide
ICD-10 CodesD44.2

D44.2

Billable

Neoplasm of uncertain behavior of parathyroid gland

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 D44.2 is a billable code used to indicate a diagnosis of neoplasm of uncertain behavior of parathyroid gland.

Key Diagnostic Point:

Neoplasms of uncertain behavior of the parathyroid gland are tumors that do not exhibit definitive characteristics of malignancy or benignity. These neoplasms can arise from the parathyroid tissue and may present with varying degrees of cellular atypia. Clinically, they may be asymptomatic or present with symptoms related to hyperparathyroidism, such as hypercalcemia, bone pain, or renal calculi. The uncertain behavior classification indicates that while these tumors may not currently exhibit aggressive characteristics, there is potential for progression to malignancy. Surveillance is critical, as these neoplasms require careful monitoring through imaging and biochemical assessments to detect any changes in behavior. The management of patients with these neoplasms often involves a multidisciplinary approach, including endocrinologists, surgeons, and oncologists, to determine the best course of action based on the tumor's behavior and the patient's overall health status.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for ongoing surveillance and monitoring
  • Potential for progression to malignancy
  • Differentiation from other parathyroid disorders

Audit Risk Factors

  • Inadequate documentation of tumor behavior
  • Failure to document surveillance findings
  • Misclassification of neoplasm type
  • Lack of follow-up notes on patient status

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed clinical notes on symptoms, lab results, and imaging studies.

Common Clinical Scenarios

Patients presenting with hypercalcemia or incidental findings on imaging.

Billing Considerations

Ensure clear documentation of the neoplasm's behavior and any changes over time.

Surgery

Documentation Requirements

Operative reports detailing the surgical approach and findings.

Common Clinical Scenarios

Surgical intervention for symptomatic parathyroid neoplasms.

Billing Considerations

Document the rationale for surgery and any histopathological findings.

Coding Guidelines

Inclusion Criteria

Use D44.2 When
  • According to ICD
  • 10 guidelines, D44
  • 2 should be used when the neoplasm's behavior is uncertain and cannot be classified as benign or malignant
  • It is essential to document the clinical findings that support this classification

Exclusion Criteria

Do NOT use D44.2 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

60500CPT Code

Parathyroidectomy

Clinical Scenario

Used when surgical intervention is required for symptomatic parathyroid neoplasms.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Endocrinologists and surgeons must coordinate documentation to reflect the neoplasm's behavior.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of neoplasms, including those of uncertain behavior. This specificity aids in better tracking and management of these conditions, improving patient care and outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of neoplasms, including those of uncertain behavior. This specificity aids in better tracking and management of these conditions, improving patient care and outcomes.

Reimbursement & Billing Impact

reimbursement and compliance.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What does 'neoplasm of uncertain behavior' mean?

It refers to tumors that cannot be definitively classified as benign or malignant based on current clinical and pathological findings. These tumors require careful monitoring due to the potential for progression.