M21.8 Header — not billable

Other specified acquired deformities of limbs

Other specified acquired deformities of limbs

M21.8 is a header (parent) code in the ICD-10-CM hierarchy. It is not billable for claim submission. Use one of the billable child codes listed below.

Billable codes in this category

Each of the codes below is billable. Choose the one that most accurately describes the patient's diagnosis.

M21.80
Other specified acquired deformities of unspecified limb

M21.80 captures acquired deformities of a limb that are neither congenital nor classifiable to a more specific M21 subcategory, where the affected limb is not documented.

Inclusion & exclusion notes

Excludes 2 (not included here, but may be coded together if both present)

  • coxa plana (M91.2)
↑ Parent: M21

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