ICD-10 Diagnosis Code M12.279

Villonodular synovitis (pigmented), unsp ankle and foot

Diagnosis Code M12.279

ICD-10: M12.279
Short Description: Villonodular synovitis (pigmented), unsp ankle and foot
Long Description: Villonodular synovitis (pigmented), unspecified ankle and foot
This is the 2018 version of the ICD-10-CM diagnosis code M12.279

Valid for Submission
The code M12.279 is valid for submission for HIPAA-covered transactions.

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

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code M12.279 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Mass of lesser toe
  • Neoplasm of uncertain behavior of soft tissues of lower limb
  • Pigmented villonodular synovitis of ankle joint
  • Villonodular synovitis of first metatarsophalangeal joint
  • Villonodular synovitis of interphalangeal joint of toe
  • Villonodular synovitis of lesser metatarsophalangeal joint
  • Villonodular synovitis of subtalar joint
  • Villonodular synovitis of talonavicular joint
  • Villonodular synovitis of the ankle and foot

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

  • Hypermobile joints (Medical Encyclopedia)
  • Joint pain (Medical Encyclopedia)
  • Joint swelling (Medical Encyclopedia)
  • Joint x-ray (Medical Encyclopedia)
  • Limited range of motion (Medical Encyclopedia)
  • Steroid injections - tendon, bursa, joint (Medical Encyclopedia)

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