ICD-10-CM · FY 2026 APRIL UPDATE
M21.6
Other acquired deformities of foot
Diagnosis reference
Nonbillable categoryThis entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.
Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification
Related entries
Up to 30 descendants in this category
| CODE | DESCRIPTION | TYPE |
|---|---|---|
| M21.61 | Bunion | Category |
| M21.611 | Bunion of right foot | Billable |
| M21.612 | Bunion of left foot | Billable |
| M21.619 | Bunion of unspecified foot | Billable |
| M21.62 | Bunionette | Category |
| M21.621 | Bunionette of right foot | Billable |
| M21.622 | Bunionette of left foot | Billable |
| M21.629 | Bunionette of unspecified foot | Billable |
| M21.6X | Other acquired deformities of foot | Category |
| M21.6X1 | Other acquired deformities of right foot | Billable |
| M21.6X2 | Other acquired deformities of left foot | Billable |
| M21.6X9 | Other acquired deformities of unspecified foot | Billable |
Use the complete reference
This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.
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