2022 ICD-10-CM Code M79.10

Myalgia, unspecified site

Version 2021

Valid for Submission

ICD-10:M79.10
Short Description:Myalgia, unspecified site
Long Description:Myalgia, unspecified site

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)

M79.10 is a billable diagnosis code used to specify a medical diagnosis of myalgia, unspecified site. The code M79.10 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code M79.10 might also be used to specify conditions or terms like chronic musculoskeletal pain, chronic musculoskeletal pain due to disease of nervous system, chronic musculoskeletal pain due to persistent inflammation, chronic primary musculoskeletal pain, diffuse muscle tenderness , localized masticatory muscle soreness, etc.

Unspecified diagnosis codes like M79.10 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

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 M79.10 are found in the index:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Replacement Code

M7910 replaces the following previously assigned ICD-10 code(s):

Information for Patients


Muscle Disorders

Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis.

Causes of muscle disorders include

Sometimes the cause of muscle disorders is unknown.


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019