C84.AA
C84.AA — Cutaneous T-cell lymphoma, unspecified, in remission
Billable / specific codeICD-10-CM
C84.AA is a billable, specific ICD-10-CM code for cutaneous t-cell lymphoma, unspecified, in remission. It is valid for submission on a claim.
Risk adjustment
C84.AA risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 20 Lung and Other Severe Cancers1.136 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
C84.AA is named in 20 Medicare coverage policies — 20 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
- A52479Oral Anticancer Drugs - Policy Article
- A52479Oral Anticancer Drugs - Policy Article
Related codes at this level
Codes that share C84.A. If C84.AA is not quite right, the correct code is usually one of these.
- C84.A0Cutaneous T-cell lymphoma, unspecified, unspecified site
- C84.A1Cutaneous T-cell lymphoma, unspecified lymph nodes of head, face, and neck
- C84.A2Cutaneous T-cell lymphoma, unspecified, intrathoracic lymph nodes
- C84.A3Cutaneous T-cell lymphoma, unspecified, intra-abdominal lymph nodes
- C84.A4Cutaneous T-cell lymphoma, unspecified, lymph nodes of axilla and upper limb
- C84.A5Cutaneous T-cell lymphoma, unspecified, lymph nodes of inguinal region and lower limb
- C84.A6Cutaneous T-cell lymphoma, unspecified, intrapelvic lymph nodes
- C84.A7Cutaneous T-cell lymphoma, unspecified, spleen
- C84.A8Cutaneous T-cell lymphoma, unspecified, lymph nodes of multiple sites
- C84.A9Cutaneous T-cell lymphoma, unspecified, extranodal and solid organ sites
Questions about C84.AA
- Is C84.AA a billable ICD-10-CM code?
- Yes. C84.AA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does C84.AA sit in the tabular list?
- Neoplasms (C00-D49), in the block Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96).