M66.26
Header — not billableSpontaneous rupture of extensor tendons, lower leg
The ICD-10 code for spontaneous rupture of extensor tendons, lower leg is M66.26.
M66.26 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
- M66.20Spontaneous rupture of extensor tendons, unspecified site
- M66.21Spontaneous rupture of extensor tendons, shouldernon-billable header
- M66.22Spontaneous rupture of extensor tendons, upper armnon-billable header
- M66.23Spontaneous rupture of extensor tendons, forearmnon-billable header
- M66.24Spontaneous rupture of extensor tendons, handnon-billable header
- M66.25Spontaneous rupture of extensor tendons, thighnon-billable header
- M66.27Spontaneous rupture of extensor tendons, ankle and footnon-billable header
- M66.28Spontaneous rupture of extensor tendons, other site
- M66.29Spontaneous rupture of extensor tendons, multiple sites
- M66.26Spontaneous rupture of extensor tendons, lower legnon-billable header