ICD-10 Code M12.36

Palindromic rheumatism, knee

Version 2019 Non-Billable Code
ICD-10:M12.36
Short Description:Palindromic rheumatism, knee
Long Description:Palindromic rheumatism, knee

Not Valid for Submission

ICD-10 M12.36 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of palindromic rheumatism, knee. The code is NOT valid for the year 2019 for the submission of HIPAA-covered transactions.

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

  • M12.361 - Palindromic rheumatism, right knee
  • M12.362 - Palindromic rheumatism, left knee
  • M12.369 - Palindromic rheumatism, unspecified knee

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

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 M12.36 are found in the index:


Information for Patients


Rheumatoid Arthritis

Also called: RA

Rheumatoid arthritis (RA) is a form of arthritis that causes pain, swelling, stiffness and loss of function in your joints. It can affect any joint but is common in the wrist and fingers.

More women than men get rheumatoid arthritis. It often starts in middle age and is most common in older people. You might have the disease for only a short time, or symptoms might come and go. The severe form can last a lifetime.

Rheumatoid arthritis is different from osteoarthritis, the common arthritis that often comes with older age. RA can affect body parts besides joints, such as your eyes, mouth and lungs. RA is an autoimmune disease, which means the arthritis results from your immune system attacking your body's own tissues.

No one knows what causes rheumatoid arthritis. Genes, environment, and hormones might contribute. Treatments include medicine, lifestyle changes, and surgery. These can slow or stop joint damage and reduce pain and swelling.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

  • Collagen vascular disease (Medical Encyclopedia)
  • Felty syndrome (Medical Encyclopedia)
  • Rheumatoid arthritis (Medical Encyclopedia)
  • Rheumatoid factor (RF) (Medical Encyclopedia)
  • Rheumatoid lung disease (Medical Encyclopedia)

[Read More]

ICD-10 Footnotes

General Equivalence Map Definitions
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.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.