D49 Neoplasms of unspecified behavior
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The ICD-10-CM code for Neoplasms of unspecified behavior is D49 (FY2026). It is a non-billable category code — select a more specific code below for claims.
Classification
- Chapter
- 2: Neoplasms (C00-D49)
- Section
- D49: Neoplasms of unspecified behavior (D49)
- Category D49
- 18 codes (14 billable)
- FY2026 Status
- Stable since FY2024
Notes
- Category D49 classifies by site neoplasms of unspecified morphology and behavior. The term 'mass', unless otherwise stated, is not to be regarded as a neoplastic growth.
Official Coding Guidelines
Chapter 2 TOC entry2. Chapter 2: Neoplasms (C00-D49) .......................................................................................... 32
Chapter 2 contains codes for most benign and all malignant neoplasms2. Chapter 2: Neoplasms (C00-D49) General Guidelines Chapter 2 of the ICD-10-CM contains the codes for most benign and all malignant neoplasms. Certain benign neoplasms, such as prostatic adenomas, may be found in the
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026
References
Cite This Page
Reference D49 with the canonical source and edition:
D49 — Neoplasms of unspecified behavior. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/D49
Canonical URL: https://icd10codingpro.com/codes/D49