D49: Neoplasms of unspecified behavior
Codes under D49 (Neoplasms of unspecified behavior). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| D49.0 | Neoplasm of unspecified behavior of digestive system | ✓ |
| D49.0 | Neoplasm of unspecified behavior of digestive system | ✓ |
| D49.1 | Neoplasm of unspecified behavior of respiratory system | ✓ |
| D49.1 | Neoplasm of unspecified behavior of respiratory system | ✓ |
| D49.2 | Neoplasm of unspecified behavior of bone, soft tissue, and skin | ✓ |
| D49.2 | Neoplasm of unspecified behavior of bone, soft tissue, and skin | ✓ |
| D49.3 | Neoplasm of unspecified behavior of breast | ✓ |
| D49.3 | Neoplasm of unspecified behavior of breast | ✓ |
| D49.4 | Neoplasm of unspecified behavior of bladder | ✓ |
| D49.4 | Neoplasm of unspecified behavior of bladder | ✓ |
| D49.5 | Neoplasm of unspecified behavior of other genitourinary organs | — |
| D49.5 | Neoplasm of unspecified behavior of other genitourinary organs | — |
| D49.6 | Neoplasm of unspecified behavior of brain | ✓ |
| D49.6 | Neoplasm of unspecified behavior of brain | ✓ |
| D49.7 | Neoplasm of unspecified behavior of endocrine glands and other parts of nervous system | ✓ |
| D49.7 | Neoplasm of unspecified behavior of endocrine glands and other parts of nervous system | ✓ |
| D49.8 | Neoplasm of unspecified behavior of other specified sites | — |
| D49.8 | Neoplasm of unspecified behavior of other specified sites | — |
| D49.9 | Neoplasm of unspecified behavior of unspecified site | ✓ |
| D49.9 | Neoplasm of unspecified behavior of unspecified site | ✓ |
| D49.51 | Neoplasm of unspecified behavior of kidney | — |
| D49.51 | Neoplasm of unspecified behavior of kidney | — |
| D49.59 | Neoplasm of unspecified behavior of other genitourinary organ | ✓ |
| D49.59 | Neoplasm of unspecified behavior of other genitourinary organ | ✓ |
| D49.81 | Neoplasm of unspecified behavior of retina and choroid | ✓ |
| D49.81 | Neoplasm of unspecified behavior of retina and choroid | ✓ |
| D49.89 | Neoplasm of unspecified behavior of other specified sites | ✓ |
| D49.89 | Neoplasm of unspecified behavior of other specified sites | ✓ |
| D49.511 | Neoplasm of unspecified behavior of right kidney | ✓ |
| D49.511 | Neoplasm of unspecified behavior of right kidney | ✓ |
| D49.512 | Neoplasm of unspecified behavior of left kidney | ✓ |
| D49.512 | Neoplasm of unspecified behavior of left kidney | ✓ |
| D49.519 | Neoplasm of unspecified behavior of unspecified kidney | ✓ |
| D49.519 | Neoplasm of unspecified behavior of unspecified kidney | ✓ |
Frequently asked questions
What is ICD-10-CM code D49?
D49 is an ICD-10-CM category covering Neoplasms of unspecified behavior. It contains 34 more specific diagnosis codes, 28 of which are billable.
Is D49 a billable code?
No — D49 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example D49.0 — Neoplasm of unspecified behavior of digestive system). 28 of the 34 codes under D49 are billable.
What codes fall under D49?
D49 includes D49.0, D49.0, D49.1, D49.1, D49.2, plus 29 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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