2025 Neoplasms of Unspecified Behavior ICD-10-CM Codes
The 2025 Neoplasms of Unspecified Behavior ICD-10-CM Codes list includes 12 codes for tumors where the behavior is not documented in the medical record. These should be used only when diagnostic information is insufficient to classify the neoplasm as benign, malignant, or uncertain. Coders should review clinical documentation carefully before using unspecified behavior codes, as improper use may delay claims or impact reimbursement.
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
D49.51 - Neoplasm of unspecified behavior of kidney Non-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
D49.81 - 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
