Neoplasms of unspecified behavior
18 codes in this section
About Section D49
Section D49 (D49-D49) covers neoplasms of unspecified behavior. It sits within the Neoplasms chapter (C00-D49). This section contains 18 ICD-10-CM codes, 14 billable diagnoses you can submit on a claim, and 4 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in D49
Grouped by 3-character root code. Click any code for full detail.
| D49.0 | Neoplasm of unspecified behavior of digestive system | Billable |
| D49.1 | Neoplasm of unspecified behavior of respiratory system | Billable |
| D49.2 | Neoplasm of unspecified behavior of bone, soft tissue, and skin | Billable |
| D49.3 | Neoplasm of unspecified behavior of breast | Billable |
| D49.4 | Neoplasm of unspecified behavior of bladder | Billable |
| D49.5 | Neoplasm of unspecified behavior of other genitourinary organs | Header |
| D49.51 | Neoplasm of unspecified behavior of kidney | Header |
| D49.511 | Neoplasm of unspecified behavior of right kidney | Billable |
| D49.512 | Neoplasm of unspecified behavior of left kidney | Billable |
| D49.519 | Neoplasm of unspecified behavior of unspecified kidney | Billable |
| D49.59 | Neoplasm of unspecified behavior of other genitourinary organ | Billable |
| D49.6 | Neoplasm of unspecified behavior of brain | Billable |
| D49.7 | Neoplasm of unspecified behavior of endocrine glands and other parts of nervous system | Billable |
| D49.8 | Neoplasm of unspecified behavior of other specified sites | Header |
| D49.81 | Neoplasm of unspecified behavior of retina and choroid | Billable |
| D49.89 | Neoplasm of unspecified behavior of other specified sites | Billable |
| D49.9 | Neoplasm of unspecified behavior of unspecified site | Billable |
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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