ICD-10 Code C81.79 – Other Hodgkin lymphoma, extranodal and solid organ sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C81.79 – Other Hodgkin lymphoma, extranodal and solid organ sites
What it is
This code identifies Hodgkin lymphoma involving extranodal or solid organ sites not captured by a more specific ICD-10-CM option. Use it when documentation clearly states this anatomic pattern.
Clinical signs
Clinical features vary; refer to documentation. Hodgkin lymphoma may present with lymph node enlargement, constitutional symptoms, or organ-specific findings when extranodal sites are involved.
When to use this code
Use C81.79 when the provider documents Hodgkin lymphoma in an extranodal or solid organ location and no more specific site code applies. Code it from the final diagnosis, pathology report, or specialist note. Check documentation if the site is unclear or if a different Hodgkin lymphoma subtype is named.
Do not use for
Do not use this code for Hodgkin lymphoma limited to lymph nodes or for a different specified Hodgkin lymphoma subtype. Check documentation if the record describes secondary malignancy or another lymphoma diagnosis.
Coding tip
Confirm the exact site and subtype before assigning C81.79, because a more specific code may apply.