C84.14

Billable

Sézary disease, lymph nodes of axilla and upper limb

HCC Category Mapping

V28HCC 17 — Metastatic Cancer and Acute Leukemia

0.368

V24HCC 10 — Lymphoma and Other Cancers

0.675

ESRDHCC 10 — Lymphoma and Other Cancers

0.000

RxHCCHCC 19 — Lymphoma and Other Cancers

0.000

What This Code Means

Sézary disease, an aggressive form of skin cancer, affecting lymph nodes in the armpits and upper arms.

Coding Tips

•Confirm axillary and/or upper limb lymph node involvement is documented
•This code includes both axillary and upper extremity lymph nodes

Clinical Significance

Sezary disease involving axillary and upper limb lymph nodes represents lymph node spread in this aggressive leukemic variant of cutaneous T-cell lymphoma. Axillary lymphadenopathy is common in Sezary disease and contributes to the overall staging assessment. Pathologic distinction from reactive dermatopathic lymphadenopathy is important for accurate staging.

Documentation Requirements

✓Peripheral blood with circulating Sezary cells documented
✓Axillary or upper limb lymph node involvement confirmed by imaging or biopsy
✓Skin biopsy confirming cutaneous T-cell lymphoma
✓TNMB staging
✓Laterality documentation if available

Commonly Confused Codes

C84.04 — Mycosis fungoides, axilla/upper limb: Distinct from Sezary disease; verify leukemic component C84.10 — Sezary disease, unspecified site: Use C84.14 when axillary involvement is confirmed C77.3 — Secondary malignant neoplasm, axillary: Do not use for primary lymphoma

Code Hierarchy

└C84Mature T/NK-cell lymphomas └C84.1Sézary disease └C84.14Sézary disease, lymph nodes of axilla and upper limb

└C84.14Sézary disease, lymph nodes of axilla and upper limb