M90.56
Header — not billableOsteonecrosis in diseases classified elsewhere, lower leg
The ICD-10 code for osteonecrosis in diseases classified elsewhere, lower leg is M90.56.
M90.56 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
- M90.50Osteonecrosis in diseases classified elsewhere, unspecified site
- M90.51Osteonecrosis in diseases classified elsewhere, shouldernon-billable header
- M90.52Osteonecrosis in diseases classified elsewhere, upper armnon-billable header
- M90.53Osteonecrosis in diseases classified elsewhere, forearmnon-billable header
- M90.54Osteonecrosis in diseases classified elsewhere, handnon-billable header
- M90.55Osteonecrosis in diseases classified elsewhere, thighnon-billable header
- M90.57Osteonecrosis in diseases classified elsewhere, ankle and footnon-billable header
- M90.58Osteonecrosis in diseases classified elsewhere, other site
- M90.59Osteonecrosis in diseases classified elsewhere, multiple sites
- M90.56Osteonecrosis in diseases classified elsewhere, lower legnon-billable header