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	✓
D49.1	Neoplasm of unspecified behavior of respiratory system	✓
D49.2	Neoplasm of unspecified behavior of bone, soft tissue, and skin	✓
D49.3	Neoplasm of unspecified behavior of breast	✓
D49.4	Neoplasm of unspecified behavior of bladder	✓
D49.5	Neoplasm of unspecified behavior of other genitourinary organs	—
D49.6	Neoplasm of unspecified behavior of brain	✓
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	—
D49.9	Neoplasm of unspecified behavior of unspecified site	✓
D49.51	Neoplasm of unspecified behavior of kidney	—
D49.59	Neoplasm of unspecified behavior of other genitourinary organ	✓
D49.81	Neoplasm of unspecified behavior of retina and choroid	✓
D49.89	Neoplasm of unspecified behavior of other specified sites	✓
D49.511	Neoplasm of unspecified behavior of right kidney	✓
D49.512	Neoplasm of unspecified behavior of left kidney	✓
D49.519	Neoplasm of unspecified behavior of unspecified kidney	✓

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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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