ICD-10 Code for Letterer-Siwe's Disease
The default ICD-10-CM 2027 code for letterer-siwe's disease is C96.0 – Multifocal and multisystemic (disseminated) Langerhans-cell histiocytosis. More specific codes depend on the details documented, as listed in the official index (1 codes, 1 billable).
- Main code
C96.0– Multifocal and multisystemic (disseminated) Langerhans-cell histiocytosis- Billable
- Yes
How to choose the right code
Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.
Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.