M79.A1

Non-Billable
ChapterM00–M99
Ranksubcategory
Official Description

Nontraumatic compartment syndrome of upper extremity

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
  • Nontraumatic compartment syndrome of shoulder, arm, forearm, wrist, hand, and fingers
General instructions are available for the parent sections:

Clinical Hierarchy

CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M70-M79Other soft tissue disorders (M70-M79)
M79Other and unspecified soft tissue disorders, not elsewhere classified
M79.ANontraumatic compartment syndrome
M79.A1Nontraumatic compartment syndrome of upper extremity
M79.A11Nontraumatic compartment syndrome of right upper extremity
M79.A12Nontraumatic compartment syndrome of left upper extremity
M79.A19Nontraumatic compartment syndrome of unspecified upper extremity

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M79.A1:

subcategoryM79.A
Nontraumatic compartment syndrome
View context instructions
categoryM79
Other and unspecified soft tissue disorders, not elsewhere classified
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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 M79.A1. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

2 raw paths

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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