C38.3 — Malignant neoplasm of mediastinum, part unspecified
C38.3 is a billable, specific ICD-10-CM code for malignant neoplasm of mediastinum, part unspecified. It is valid for submission on a claim.
Other codes that can never be billed with C38.3
These codes carry an Excludes1 note pointing at C38.3. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C38.3 alone.
- C49.3Malignant neoplasm of connective and soft tissue of thorax
Risk adjustment
C38.3 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 21 Lymphoma and Other Cancers0.671 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
C38.3 is named in 42 Medicare coverage policies — 42 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52479Oral Anticancer Drugs - Policy Article
- A52479Oral Anticancer Drugs - Policy Article
- A53101Billing and Coding: MolDX: bioTheranostics Cancer TYPE ID® Update
- A54188Billing and Coding: MolDX: bioTheranostics Cancer TYPE ID®
Related codes at this level
Codes that share C38. If C38.3 is not quite right, the correct code is usually one of these.
Questions about C38.3
- Is C38.3 a billable ICD-10-CM code?
- Yes. C38.3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does C38.3 sit in the tabular list?
- Neoplasms (C00-D49), in the block Malignant neoplasms of respiratory and intrathoracic organs (C30-C39).