C84.18
C84.18 — Sezary disease, lymph nodes of multiple sites
Billable / specific codeICD-10-CM
C84.18 is a billable, specific ICD-10-CM code for sezary disease, lymph nodes of multiple sites. It is valid for submission on a claim.
Risk adjustment
C84.18 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 17 Cancer Metastatic to Lung, Liver, Brain, and Other Organs; Acute Myeloid Leukemia Except Promyelocytic4.209 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
C84.18 is named in 45 Medicare coverage policies — 45 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 C84.1. If C84.18 is not quite right, the correct code is usually one of these.
- C84.10Sezary disease, unspecified site
- C84.11Sezary disease, lymph nodes of head, face, and neck
- C84.12Sezary disease, intrathoracic lymph nodes
- C84.13Sezary disease, intra-abdominal lymph nodes
- C84.14Sezary disease, lymph nodes of axilla and upper limb
- C84.15Sezary disease, lymph nodes of inguinal region and lower limb
- C84.16Sezary disease, intrapelvic lymph nodes
- C84.17Sezary disease, spleen
- C84.19Sezary disease, extranodal and solid organ sites
- C84.1ASezary disease, in remission
Questions about C84.18
- Is C84.18 a billable ICD-10-CM code?
- Yes. C84.18 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does C84.18 sit in the tabular list?
- Neoplasms (C00-D49), in the block Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96).