ICD-10-CM Code M60.00

Infective myositis, unspecified site

Version 2020 Non-Billable Code

Not Valid for Submission

M60.00 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of infective myositis, unspecified site. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

Short Description:Infective myositis, unspecified site
Long Description:Infective myositis, unspecified site

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

  • M60.000 - Infective myositis, unspecified right arm
  • M60.001 - Infective myositis, unspecified left arm
  • M60.002 - Infective myositis, unspecified arm
  • M60.003 - Infective myositis, unspecified right leg
  • M60.004 - Infective myositis, unspecified left leg
  • M60.005 - Infective myositis, unspecified leg
  • M60.009 - Infective myositis, unspecified site

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)

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


Myositis means inflammation of the muscles that you use to move your body. An injury, infection, or autoimmune disease can cause it. Two specific kinds are polymyositis and dermatomyositis. Polymyositis causes muscle weakness, usually in the muscles closest to the trunk of your body. Dermatomyositis causes muscle weakness, plus a skin rash.

Other symptoms of myositis may include

  • Fatigue after walking or standing
  • Tripping or falling
  • Trouble swallowing or breathing

Doctors may use a physical exam, lab tests, imaging tests and a muscle biopsy to diagnose myositis. There is no cure for these diseases, but you can treat the symptoms. Polymyositis and dermatomyositis are first treated with high doses of a corticosteroid. Other options include medications, physical therapy, exercise, heat therapy, assistive devices, and rest.

NIH: National Institute of Neurological Disorders and Stroke

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