M85.57
Header — not billableAneurysmal bone cyst, ankle and foot
The ICD-10 code for aneurysmal bone cyst, ankle and foot is M85.57.
M85.57 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 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
- M85.50Aneurysmal bone cyst, unspecified site
- M85.51Aneurysmal bone cyst, shouldernon-billable header
- M85.52Aneurysmal bone cyst, upper armnon-billable header
- M85.53Aneurysmal bone cyst, forearmnon-billable header
- M85.54Aneurysmal bone cyst, handnon-billable header
- M85.55Aneurysmal bone cyst, thighnon-billable header
- M85.56Aneurysmal bone cyst, lower legnon-billable header
- M85.58Aneurysmal bone cyst, other site
- M85.59Aneurysmal bone cyst, multiple sites
- M85.57Aneurysmal bone cyst, ankle and footnon-billable header