H21.55
Header — not billableRecession of chamber angle
The ICD-10 code for recession of chamber angle is H21.55.
H21.55 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- H21.50Unspecified adhesions of irisnon-billable header
- H21.51Anterior synechiae (iris)non-billable header
- H21.52Goniosynechiaenon-billable header
- H21.53Iridodialysisnon-billable header
- H21.54Posterior synechiae (iris)non-billable header
- H21.56Pupillary abnormalitiesnon-billable header
- H21.55Recession of chamber anglenon-billable header