M1A.0
M1A.0 — Idiopathic chronic gout
Non-billable headerICD-10-CM
M1A.0 is a non-billable header ICD-10-CM code for idiopathic chronic gout. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category M1A
- 0
- without tophus (tophi)
- 1
- with tophus (tophi)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Chronic gouty bursitis
- Primary chronic gout
Risk adjustment
M1A.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead M1A.0
10 child codes. Green means billable.
- M1A.00Idiopathic chronic gout, unspecified site
- M1A.01Idiopathic chronic gout, shoulder
- M1A.02Idiopathic chronic gout, elbow
- M1A.03Idiopathic chronic gout, wrist
- M1A.04Idiopathic chronic gout, hand
- M1A.05Idiopathic chronic gout, hip
- M1A.06Idiopathic chronic gout, knee
- M1A.07Idiopathic chronic gout, ankle and foot
- M1A.08Idiopathic chronic gout, vertebrae
- M1A.09Idiopathic chronic gout, multiple sites
Related codes at this level
Codes that share M1A. If M1A.0 is not quite right, the correct code is usually one of these.
Questions about M1A.0
- Is M1A.0 a billable ICD-10-CM code?
- No. M1A.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M1A.0 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Inflammatory polyarthropathies (M05-M14).