M20.02

Non-Billable

ChapterM00–M99

Ranksubcategory

Official Description

Boutonnière deformity

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

General instructions are available for the parent sections:

View CH13 Notes View M20-M25 Notes View M20 Notes View M20.0 Notes

Clinical Hierarchy

CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)

M20-M25Other joint disorders (M20-M25)

M20Acquired deformities of fingers and toes

M20.0Deformity of finger(s)

M20.02Boutonnière deformity

M20.021Boutonnière deformity of right finger(s)

M20.022Boutonnière deformity of left finger(s)

M20.029Boutonnière deformity of unspecified finger(s)

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M20.02:

subcategoryM20.0

Deformity of finger(s)

View context instructions

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

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to M20.02. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

1 raw paths

Deformity1 unique routes

finger (acquired)

boutonniere→M20.02

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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