M21.8

Non-Billable
ChapterM00–M99
Ranksubcategory
Official Description

Other specified acquired deformities of limbs

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:

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M20-M25Other joint disorders (M20-M25)
M21Other acquired deformities of limbs
M21.8Other specified acquired deformities of limbsNot billable
M21.80Other specified acquired deformities of unspecified limbBillable
M21.82Other specified acquired deformities of upper armSubcodes
M21.83Other specified acquired deformities of forearmSubcodes
M21.85Other specified acquired deformities of thighSubcodes
M21.86Other specified acquired deformities of lower legSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M21.8:

categoryM21
Other acquired deformities of limbs
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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