ICD-10-CM Code M79.A1

Nontraumatic compartment syndrome of upper extremity

Version 2020 Non-Billable Code

Not Valid for Submission

M79.A1 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of nontraumatic compartment syndrome of upper extremity. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:M79.A1
Short Description:Nontraumatic compartment syndrome of upper extremity
Long Description:Nontraumatic compartment syndrome of upper extremity

Consider the following ICD-10 codes with a higher level of specificity:

  • M79.A11 - Nontraumatic compartment syndrome of right upper extremity
  • M79.A12 - Nontraumatic compartment syndrome of left upper extremity
  • M79.A19 - Nontraumatic compartment syndrome of unspecified upper extremity

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code M79.A1:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Nontraumatic compartment syndrome of shoulder, arm, forearm, wrist, hand, and fingers

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code M79.A1 are found in the index:


Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Other soft tissue disorders (M70-M79)
      • Oth and unsp soft tissue disorders, not elsewhere classified (M79)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Arm Injuries and Disorders

Of the 206 bones in your body, three of them are in your arm: the humerus, radius, and ulna. Your arms are also made up of muscles, joints, tendons, and other connective tissue. Injuries to any of these parts of the arm can occur during sports, a fall, or an accident.

Types of arm injuries include

  • Tendinitis and bursitis
  • Sprains
  • Dislocations
  • Broken bones
  • Nerve problems
  • Osteoarthritis

You may also have problems or injure specific parts of your arm, such as your hand, wrist, elbow, or shoulder.


[Learn More]