M1ANon-billable
Chronic gout
Chapter 13: Diseases of the musculoskeletal system and connective tissue
Excludes1
1 item
Excludes1
- •gout NOS (M10.-)
Excludes2
1 item
Excludes2
- •acute gout (M10.-)
Use Additional Code
7 items
Use Additional Code
- •code to identify:
- •Autonomic neuropathy in diseases classified elsewhere (G99.0)
- •Calculus of urinary tract in diseases classified elsewhere (N22)
- •Cardiomyopathy in diseases classified elsewhere (I43)
- •
- •Disorders of iris and ciliary body in diseases classified elsewhere (H22)
- •Glomerular disorders in diseases classified elsewhere (N08)
Coding Guidance
M1A should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail. See Related Codes to drill down to more specific billable codes for appropriate reimbursement.
7th Character Information
The appropriate 7th character is to be added to each code from category M1A
7th Character Values:
- •0: without tophus (tophi)
- •1: with tophus (tophi)
Additional Information from Parent Codes
The following information may apply to this code from its parent codes in the ICD-10 hierarchy. This information is important for proper coding and classification.
Parent Codes Referenced:
Excludes2
10 items
Excludes2
From M00-M99:
- •arthropathic psoriasis (L40.5-)
- •certain conditions originating in the perinatal period (P04-P96)
- •certain infectious and parasitic diseases (A00-B99)
- •compartment syndrome (traumatic) (T79.A-)
- •
- •congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- •endocrine, nutritional and metabolic diseases (E00-E88)
- •injury, poisoning and certain other consequences of external causes (S00-T88)
- •neoplasms (C00-D49)
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Notes
1 item
Notes
From M00-M99:
- •Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition