C96.A Histiocytic sarcoma

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Malignant histiocytosis

Applies from C96 Other and unspecified malignant neoplasms of lymphoid, hematopoietic and related tissue

Excludes1 (never code together)

• personal history of other malignant neoplasms of lymphoid, hematopoietic and related tissues (Z85.79)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 21 — Lymphoma and Other Cancers
• CMS-HCC V22: HCC 10 — Lymphoma and Other Cancers
• RxHCC V08: HCC 21 — Lymphomas and Other Hematologic Cancers
• ESRD V24: HCC 10

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 202.30 Malignant histiocytosis, unspecified site, extranodal and solid organ sites (approximate)

Code annotations containing back-references to C96.A

Back-references to C96.A

• Type 1 Excludes: D76 Other specified diseases with participation of lymphoreticular and reticulohistiocytic tissue ("histiocytic sarcoma (C96.A)")
• Type 1 Excludes: D76 Other specified diseases with participation of lymphoreticular and reticulohistiocytic tissue ("malignant histiocytosis (C96.A)")
• Code First: M36.1 Arthropathy in neoplastic disease ("malignant histiocytosis (C96.A)")

Back-references to C96

• Type 1 Excludes: C76 Malignant neoplasm of other and ill-defined sites ("malignant neoplasm of lymphoid, hematopoietic and related tissue (C81-C96)")
• Type 1 Excludes: C77 Secondary and unspecified malignant neoplasm of lymph nodes ("malignant neoplasm of lymph nodes, specified as primary (C81-C86, C88, C96.-)")
• Code Also: D59.39 Other hemolytic-uremic syndrome ("malignant neoplasm (C00-C96)")
• Code First: D84.81 Immunodeficiency due to conditions classified elsewhere ("malignant neoplasms (C00-C96)")
• Code First: E08 Diabetes mellitus due to underlying condition ("malignant neoplasm (C00-C96)")
• Code First: Z15.0 Genetic susceptibility to malignant neoplasm (", if applicable, any current malignant neoplasm (C00-C75, C81-C96)")

Diagnosis Index entries for C96.A

• Arthropathy › in (due to) › malignant histiocytosis
• Histiocytosis › malignant
• Lymphoma (of) (malignant) › histiocytic › true
• Lymphoma (of) (malignant) › true histiocytic
• Reticulosis (skin) › histiocytic medullary
• Sarcoma (of) › histiocytic

Nearby codes

• C96.22 Mast cell sarcoma
• C96.29 Other malignant mast cell neoplasm
• C96.4 Sarcoma of dendritic cells (accessory cells)
• C96.5 Multifocal and unisystemic Langerhans-cell histiocytosis
• C96.6 Unifocal Langerhans-cell histiocytosis
• C96.A Histiocytic sarcoma (this code)
• C96.Z Other specified malignant neoplasms of lymphoid, hematopoietic and related tissue
• C96.9 Malignant neoplasm of lymphoid, hematopoietic and related tissue, unspecified