ICD-10 Code C81.70 – Other Hodgkin lymphoma, unspecified site (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C81.70 – Other Hodgkin lymphoma, unspecified site
What it is
C81.70 identifies Hodgkin lymphoma classified as other Hodgkin lymphoma, with no site specified in the record. Use it when the documentation confirms this lymphoma type but does not name a particular lymph node region or extranodal site.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include lymph node enlargement, constitutional “B” symptoms, or biopsy-confirmed Hodgkin lymphoma, but you should code only what is documented and supported.
When to use this code
Use C81.70 when the provider documents other Hodgkin lymphoma and does not specify the anatomic site. It also fits when pathology or oncology notes confirm the diagnosis, but the chart does not identify a more specific site. If a site is later documented, select the more precise code.
Do not use for
Do not use this code for classic Hodgkin lymphoma with a named site, or for non-Hodgkin lymphoma. Check documentation if the record only says “lymphoma” without confirming Hodgkin lymphoma.
Coding tip
Code the highest level of specificity available, and query for the site if the diagnosis is otherwise clear but unspecified.