C86.3 ICD-10-CM Code: Subcutaneous panniculitis-like T-cell lymphoma
C86.3 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC coding software
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FY 2026 Apr update / Neoplasms (C00-D49) / Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)
C86.3
Header CodeICD-10-CMOfficial ICD-10-CMCodebook guidanceSubcutaneous panniculitis-like T-cell lymphoma
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialNo inclusion terms are included in this display for C86.3. Check the code and parent instructions in the Code Book.
Excludes 2
Official- Kaposi's sarcoma of lymph nodes (C46.3)Inherited from C81-C96
- secondary and unspecified neoplasm of lymph nodes (C77.-)Inherited from C81-C96
- secondary neoplasm of bone marrow (C79.52)Inherited from C81-C96
- secondary neoplasm of spleen (C78.89)Inherited from C81-C96
Related Codes
Includes
OfficialNo Includes notes are included in this display for C86.3. Check the code and parent instructions in the Code Book.
Excludes 1
Official- anaplastic large cell lymphoma, ALK negative (C84.7-)Inherited from C86
- anaplastic large cell lymphoma, ALK positive (C84.6-)Inherited from C86
- mature T/NK-cell lymphomas (C84.-)Inherited from C86
- other specified types of non-Hodgkin lymphoma (C85.8-)Inherited from C86
Code First
OfficialNo Code First sequencing instructions are included in this display for C86.3. Check the code and parent instructions in the Code Book.
Use Additional
OfficialNo Use Additional Code instructions are included in this display for C86.3. Check the code and parent instructions in the Code Book.
Code Also
OfficialNo Code Also instructions are included in this display for C86.3. Check the code and parent instructions in the Code Book.
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
- Code
- C86.3
- Description
- Subcutaneous panniculitis-like T-cell lymphoma
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- No
- Payment year
- 2026
Coder workflow notes
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What This Code Means
C86.3 is the ICD-10-CM diagnosis code for subcutaneous panniculitis-like t-cell lymphoma. C86.3 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering malignant neoplasms of lymphoid, hematopoietic and related tissue (c81-c96).
Header codes like C86.3 cannot be reported on claims directly; they organize child codes that share clinical context. Coders should select the billable child code that matches the documented presentation and then verify its current source-backed HCC mapping. Do not infer a child code or risk adjustment value from the header alone.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for C86.3 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.