D49
⚠ Non-billable (Header)Neoplasms of unspecified behavior
Neoplasms (C00-D49)
⚠️ This is a category header code — not billable. Use a more specific child code below.
✅ Includes
- • 'growth' NOS
- • neoplasm NOS
- • new growth NOS
- • tumor NOS
⚠️ Excludes2
directMay be coded together if both conditions coexist
- • neoplasms of uncertain behavior (D37-D44, D48)
Child Codes (10)
D49.0Neoplasm of unspecified behavior of digestive systemD49.1Neoplasm of unspecified behavior of respiratory systemD49.2Neoplasm of unspecified behavior of bone, soft tissue, and skinD49.3Neoplasm of unspecified behavior of breastD49.4Neoplasm of unspecified behavior of bladderD49.5Neoplasm of unspecified behavior of other genitourinary organsD49.6Neoplasm of unspecified behavior of brainD49.7Neoplasm of unspecified behavior of endocrine glands and other parts of nervous systemD49.8Neoplasm of unspecified behavior of other specified sitesD49.9Neoplasm of unspecified behavior of unspecified site
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CodeD49
BillableNo — Header code
CategoryNeoplasms (C00-D49)
Excludes10 rule(s)
Excludes21 note(s)
Child codes10
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)