MCMedicalCodingSoftware
D43

D43: Neoplasm of uncertain behavior of brain and central nervous system

Non-billable headerICD-10-CM

D43 is a non-billable header ICD-10-CM code for neoplasm of uncertain behavior of brain and central nervous system. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • neoplasm of uncertain behavior of peripheral nerves and autonomic nervous system (D48.2)

Other codes that can never be billed with D43

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • D43.0Neoplasm of uncertain behavior of brain, supratentorial

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead D43

7 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.