ICD-10-CM Code M12.2

Villonodular synovitis (pigmented)

Version 2020 Non-Billable Code

Not Valid for Submission

M12.2 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of villonodular synovitis (pigmented). The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:M12.2
Short Description:Villonodular synovitis (pigmented)
Long Description:Villonodular synovitis (pigmented)

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

  • M12.20 - Villonodular synovitis (pigmented), unspecified site
  • M12.21 - Villonodular synovitis (pigmented), shoulder
  • M12.211 - Villonodular synovitis (pigmented), right shoulder
  • M12.212 - Villonodular synovitis (pigmented), left shoulder
  • M12.219 - Villonodular synovitis (pigmented), unspecified shoulder
  • M12.22 - Villonodular synovitis (pigmented), elbow
  • M12.221 - Villonodular synovitis (pigmented), right elbow
  • M12.222 - Villonodular synovitis (pigmented), left elbow
  • M12.229 - Villonodular synovitis (pigmented), unspecified elbow
  • M12.23 - Villonodular synovitis (pigmented), wrist
  • M12.231 - Villonodular synovitis (pigmented), right wrist
  • M12.232 - Villonodular synovitis (pigmented), left wrist
  • M12.239 - Villonodular synovitis (pigmented), unspecified wrist
  • M12.24 - Villonodular synovitis (pigmented), hand
  • M12.241 - Villonodular synovitis (pigmented), right hand
  • M12.242 - Villonodular synovitis (pigmented), left hand
  • M12.249 - Villonodular synovitis (pigmented), unspecified hand
  • M12.25 - Villonodular synovitis (pigmented), hip
  • M12.251 - Villonodular synovitis (pigmented), right hip
  • M12.252 - Villonodular synovitis (pigmented), left hip
  • M12.259 - Villonodular synovitis (pigmented), unspecified hip
  • M12.26 - Villonodular synovitis (pigmented), knee
  • M12.261 - Villonodular synovitis (pigmented), right knee
  • M12.262 - Villonodular synovitis (pigmented), left knee
  • M12.269 - Villonodular synovitis (pigmented), unspecified knee
  • M12.27 - Villonodular synovitis (pigmented), ankle and foot
  • M12.271 - Villonodular synovitis (pigmented), right ankle and foot
  • M12.272 - Villonodular synovitis (pigmented), left ankle and foot
  • M12.279 - Villonodular synovitis (pigmented), unspecified ankle and foot
  • M12.28 - Villonodular synovitis (pigmented), other specified site
  • M12.29 - Villonodular synovitis (pigmented), multiple sites

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 M12.2 are found in the index:


Clinical Information

  • SYNOVITIS PIGMENTED VILLONODULAR-. diffuse outgrowth arising from the synovial membrane; synovial bursa; or tendon sheath around the joint cavity with extension to surrounding soft tissue. it is characterized by pigmented hemosiderin containing macrophages; foam cells; and multinucleated giant cells. it usually occurs in the hands and feet and around large joints such as in the ankle and knee joints.

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Inflammatory polyarthropathies (M05-M14)
      • Other and unspecified arthropathy (M12)

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


Joint Disorders

A joint is where two or more bones come together, like the knee, hip, elbow, or shoulder. Joints can be damaged by many types of injuries or diseases, including

  • Arthritis - inflammation of a joint. It causes pain, stiffness, and swelling. Over time, the joint can become severely damaged.
  • Bursitis - inflammation of a fluid-filled sac that cushions the joint
  • Dislocations - injuries that force the ends of the bones out of position

Treatment of joint problems depends on the cause. If you have a sports injury, treatment often begins with the RICE (Rest, Ice, Compression, and Elevation) method to relieve pain, reduce swelling, and speed healing. Other possible treatments include pain relievers, keeping the injured area from moving, rehabilitation, and sometimes surgery. For arthritis, injuries, or other diseases, you may need joint replacement surgery to remove the damaged joint and put in a new one.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


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