D00-D09
Medium Complexity
In situ neoplasms
Primary Specialty: Oncology
Last Updated: 2025-09-09
ICD-10 Codes (128)
128 billable0 category headers
D01Billable
D01.0Billable
D01.1Billable
D01.2Billable
D01.3Billable
D01.4Billable
D01.40Billable
D01.49Billable
D01.5Billable
D01.7Billable
D01.9Billable
D02Billable
D02.0Billable
D02.1Billable
D02.2Billable
D02.20Billable
D02.21Billable
D02.22Billable
D02.3Billable
D02.4Billable
D03Billable
D03.0Billable
D03.1Billable
D03.10Billable
D03.11Billable
D03.111Billable
D03.112Billable
D03.12Billable
D03.121Billable
D03.122Billable
D03.2Billable
D03.20Billable
D03.21Billable
D03.22Billable
D03.3Billable
D03.30Billable
D03.39Billable
D03.4Billable
D03.5Billable
D03.51Billable
D03.52Billable
D03.59Billable
D03.6Billable
D03.60Billable
D03.61Billable
D03.62Billable
D03.7Billable
D03.70Billable
D03.71Billable
D03.72Billable
D03.8Billable
D03.9Billable
D04Billable
D04.0Billable
D04.1Billable
D04.10Billable
D04.11Billable
D04.111Billable
D04.112Billable
D04.12Billable
D04.121Billable
D04.122Billable
D04.2Billable
D04.20Billable
D04.21Billable
D04.22Billable
D04.3Billable
D04.30Billable
D04.39Billable
D04.4Billable
D04.5Billable
D04.6Billable
D04.60Billable
D04.61Billable
D04.62Billable
D04.7Billable
D04.70Billable
D04.71Billable
D04.72Billable
D04.8Billable
D04.9Billable
D05Billable
D05.0Billable
D05.00Billable
D05.01Billable
D05.02Billable
D05.1Billable
D05.10Billable
D05.11Billable
D05.12Billable
D05.8Billable
D05.80Billable
D05.81Billable
D05.82Billable
D05.9Billable
D05.90Billable
D05.91Billable
D05.92Billable
D06Billable
D06.0Billable
D06.1Billable
D06.7Billable
D06.9Billable
D07Billable
D07.0Billable
D07.1Billable
D07.2Billable
D07.3Billable
D07.30Billable
D07.39Billable
D07.4Billable
D07.5Billable
D07.6Billable
D07.60Billable
D07.61Billable
D07.69Billable
D09Billable
D09.0Billable
D09.1Billable
D09.10Billable
D09.19Billable
D09.2Billable
D09.20Billable
D09.21Billable
D09.22Billable
D09.3Billable
D09.8Billable
D09.9Billable
Updates & Changes
FY 2026 Updates
Current Year
Deleted Codes
No codes deleted in this range for FY 2026
No significant changes for FY 2026
This range maintains stability with current coding practices
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 D00-D09 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 D00-D09 range in the ICD-10 pertains to in situ neoplasms, which are abnormal growths that have not yet invaded neighboring tissues or spread to distant parts of the body. This category includes codes for in situ neoplasms of the digestive, respiratory, female genital organs, and more. It's crucial to accurately code these conditions as they represent a precancerous stage, and appropriate coding can facilitate preventive measures and early treatment.
Key Usage Points:
- •Always specify the location of the in situ neoplasm.
- •Use additional codes to identify any associated conditions or risk factors.
- •For neoplasms of uncertain behavior, use codes from D37-D48.
- •For malignant neoplasms, use codes from C00-C96.
- •For benign neoplasms, use codes from D10-D36.
Coding Guidelines
When to Use:
- âś“When a patient has a confirmed diagnosis of an in situ neoplasm.
- âś“When a patient has a history of in situ neoplasm, but it's no longer present.
- âś“When a patient is receiving follow-up care after treatment for an in situ neoplasm.
- âś“When a patient is at high risk for developing an in situ neoplasm due to genetic or environmental factors.
When NOT to Use:
- âś—When a patient has a malignant or benign neoplasm.
- âś—When a patient has a neoplasm of uncertain behavior.
- âś—When a patient has a neoplasm in an unspecified site.
- âś—When a patient has a neoplasm without histologic confirmation.
Code Exclusions
Always verify exclusions with the patient's medical record and pathology report.
Documentation Requirements
Accurate documentation for in situ neoplasms should include the specific site, histologic type, and any associated conditions or risk factors. It should also indicate whether the neoplasm is a current condition, a past condition with no current evidence, or a condition for which the patient is at high risk.
Clinical Information:
- •Specific site of the in situ neoplasm
- •Histologic type of the in situ neoplasm
- •Presence or absence of the neoplasm at the time of the encounter
- •Any associated conditions or risk factors
Supporting Evidence:
- •Pathology report
- •Imaging studies
- •Clinical notes
- •Laboratory tests
Good Documentation Example:
Patient has a confirmed diagnosis of in situ neoplasm of the colon, as evidenced by a pathology report.
Poor Documentation Example:
Patient has a neoplasm.
Common Documentation Errors:
- âš Failing to specify the site of the neoplasm
- âš Failing to document the histologic type of the neoplasm
- âš Failing to indicate the presence or absence of the neoplasm at the time of the encounter
- âš Failing to document any associated conditions or risk factors
Range Statistics
9
Total Codes
128
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:3
Coding Complexity
Medium
Complexity Rating
Coding for in situ neoplasms can be moderately complex due to the need to specify the site and histologic type of the neoplasm, as well as to distinguish between current, past, and high-risk conditions. Additionally, any associated conditions or risk factors must be coded.
Key Factors:
- â–¸Determining the specific site of the neoplasm
- â–¸Identifying the histologic type of the neoplasm
- â–¸Distinguishing between current, past, and high-risk conditions
- â–¸Coding any associated conditions or risk factors
Specialty Focus
In situ neoplasms are commonly encountered in specialties such as gastroenterology, pulmonology, and gynecology. Early detection and treatment can prevent progression to invasive cancer.
Primary Specialties:
Gastroenterology
30%
Pulmonology
20%
Gynecology
25%
Clinical Scenarios:
- • A patient with a confirmed diagnosis of in situ neoplasm of the colon
- • A patient with a history of in situ neoplasm of the lung, but no current evidence of the neoplasm
- • A patient receiving follow-up care after treatment for in situ neoplasm of the cervix
- • A patient at high risk for developing in situ neoplasm of the breast due to BRCA1 mutation
Resources & References
Resources for coding in situ neoplasms include the ICD-10-CM Official Guidelines for Coding and Reporting, the American Health Information Management Association (AHIMA), and the American Academy of Professional Coders (AAPC).
Official Guidelines:
- ICD-10-CM Official Guidelines for Coding and Reporting
- American Health Information Management Association (AHIMA)
- American Academy of Professional Coders (AAPC)
Clinical References:
- American Cancer Society
- National Cancer Institute
Educational Materials:
- ICD-10-CM Coding Workbook for Oncology
- ICD-10-CM Coding Handbook
Frequently Asked Questions
How do I code for a patient with a history of in situ neoplasm, but no current evidence of the neoplasm?
You would use the appropriate code from the D00-D09 range, along with Z85.00 (Personal history of malignant neoplasm, unspecified) to indicate the history of the neoplasm.