M21.06
Non-Billable
ChapterM00–M99
Ranksubcategory
Official Description
Valgus deformity, not elsewhere classified, knee
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).
Instructional Notes
Includes
- Genu valgum
- Knock knee
General instructions are available for the parent sections:
Clinical Hierarchy
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M20-M25Other joint disorders (M20-M25)
M21Other acquired deformities of limbs
M21.0Valgus deformity, not elsewhere classified
M21.06Valgus deformity, not elsewhere classified, knee
M21.061Valgus deformity, not elsewhere classified, right knee
M21.062Valgus deformity, not elsewhere classified, left knee
M21.069Valgus deformity, not elsewhere classified, unspecified knee
Applicable Ancestor Context
The following parent sections contain instructions or notes that apply to M21.06:
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructionsAlphabetic Index Mentions
These are Diagnosis Index lookup paths that route to M21.06. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.
3 raw paths
MS-DRG Classification
No direct MS-DRG triggers identified.
Cross Reference
Find Procedures (ICD-10-PCS)
Find surgical and procedural codes related to Valgus deformity, not elsewhere classified, knee.
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