M1A.46 - Other secondary chronic gout, knee

Version 2023
ICD-10:M1A.46
Short Description:Other secondary chronic gout, knee
Long Description:Other secondary chronic gout, knee
Status: Not Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Inflammatory polyarthropathies (M05-M14)
      • Chronic gout (M1A)

M1A.46 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of other secondary chronic gout, knee. The code is not specific and is NOT valid for the year 2023 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Other secondary chronic gout, knee

Non-specific codes like M1A.46 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for other secondary chronic gout, knee:

  • NON-BILLABLE CODE - M1A.461 for Other secondary chronic gout, right knee
  • BILLABLE CODE - Use M1A.4610 for without tophus (tophi)
  • BILLABLE CODE - Use M1A.4611 for with tophus (tophi)
  • NON-BILLABLE CODE - M1A.462 for Other secondary chronic gout, left knee
  • BILLABLE CODE - Use M1A.4620 for without tophus (tophi)
  • BILLABLE CODE - Use M1A.4621 for with tophus (tophi)
  • NON-BILLABLE CODE - M1A.469 for Other secondary chronic gout, unspecified knee
  • BILLABLE CODE - Use M1A.4690 for without tophus (tophi)
  • BILLABLE CODE - Use M1A.4691 for with tophus (tophi)

Index to Diseases and Injuries References

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 this diagnosis code are found in the injuries and diseases index:

Patient Education


Gout

Gout is a common, painful form of arthritis. It causes swollen, red, hot and stiff joints.

Gout happens when uric acid builds up in your body. Uric acid comes from the breakdown of substances called purines. Purines are in your body's tissues and in foods, such as liver, dried beans and peas, and anchovies. Normally, uric acid dissolves in the blood. It passes through the kidneys and out of the body in urine. But sometimes uric acid can build up and form needle-like crystals. When they form in your joints, it is very painful. The crystals can also cause kidney stones.

Often, gout first attacks your big toe. It can also attack ankles, heels, knees, wrists, fingers, and elbows. At first, gout attacks usually get better in days. Eventually, attacks last longer and happen more often.

You are more likely to get gout if you:

Gout can be hard to diagnose. Your doctor may take a sample of fluid from an inflamed joint to look for crystals. You can treat gout with medicines.

Pseudogout has similar symptoms and is sometimes confused with gout. However, it is caused by calcium phosphate, not uric acid.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


[Learn More in MedlinePlus]

Gout

Gout is a type of arthritis that causes pain and swelling in your joints, usually as flares that last for a week or two, and then go away.
[Learn More in MedlinePlus]

Code History