C81.99 Hodgkin lymphoma, unspecified, extranodal and solid organ sites

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

Applies from C81 Hodgkin lymphoma

Excludes1 (never code together)

• personal history of Hodgkin lymphoma (Z85.71)

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) 820-822 in MDC 17.

Approximate ICD-9-CM (GEMs)

• 201.90 Hodgkin's disease, unspecified type, unspecified site, extranodal and solid organ sites (approximate)

Code annotations containing back-references to C81.99

Back-references to C81

• Type 1 Excludes: C26.1 Malignant neoplasm of spleen ("Hodgkin lymphoma (C81.-)")
• 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 First: Z15.0 Genetic susceptibility to malignant neoplasm (", if applicable, any current malignant neoplasm (C00-C75, C81-C96)")

Nearby codes

• C81.94 Hodgkin lymphoma, unspecified, lymph nodes of axilla and upper limb
• C81.95 Hodgkin lymphoma, unspecified, lymph nodes of inguinal region and lower limb
• C81.96 Hodgkin lymphoma, unspecified, intrapelvic lymph nodes
• C81.97 Hodgkin lymphoma, unspecified, spleen
• C81.98 Hodgkin lymphoma, unspecified, lymph nodes of multiple sites
• C81.99 Hodgkin lymphoma, unspecified, extranodal and solid organ sites (this code)
• C81.9A Hodgkin lymphoma, unspecified, in remission