All ICD10 Codes

M20.1

Non-Billable
ChapterM00–M99
Ranksubcategory
Official Description

Hallux valgus (acquired)

Use a more specific code (3 billable)
M20.10Hallux valgus (acquired), unspecified footM20.11Hallux valgus (acquired), right footM20.12Hallux valgus (acquired), left foot
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)
General instructions are available for the parent sections:
View CH13 NotesView M20-M25 NotesView M20 Notes

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M20-M25Other joint disorders (M20-M25)
M20Acquired deformities of fingers and toes
M20.1Hallux valgus (acquired)Not billable
M20.10Hallux valgus (acquired), unspecified footBillable
M20.11Hallux valgus (acquired), right footBillable
M20.12Hallux valgus (acquired), left footBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M20.1:

categoryM20
Acquired deformities of fingers and toes
View context instructions
blockM20-M25
Other joint disorders (M20-M25)
View context instructions
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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