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M1A.2Non-billableSave

M1A.2 - Drug-induced chronic gout

ICD-10-CM Chapter 13: Diseases of the musculoskeletal system and connective tissue · M05-M14 Inflammatory polyarthropathies (M05-M14) · Subcategory of M1A · FY2027

Coding Guidance

M1A.2 is a non-billable heading. Report one of the 10 more specific codes below.

7th Character

The appropriate 7th character is to be added to each code from category M1A

  • 0without tophus (tophi)
  • 1with tophus (tophi)

Includes, Excludes and Coding Notes

Use Additional CodeFrom M1A.2

Add a secondary code to identify the associated condition or cause when it is documented.

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Excludes 1 — Not Coded HereFrom M1A

Mutually exclusive: these conditions are never reported together with this code.

  • gout NOS (M10.-)
Excludes 2 — Not Included HereFrom M1A

Not part of this code; report both codes when the patient has both conditions.

  • acute gout (M10.-)
Use Additional CodeFrom M1A

Add a secondary code to identify the associated condition or cause when it is documented.

  • 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 external ear in diseases classified elsewhere (H61.1-, H62.8-)
  • Disorders of iris and ciliary body in diseases classified elsewhere (H22)
  • Glomerular disorders in diseases classified elsewhere (N08)
Excludes 2 — Not Included HereFrom Chapter M00-M99

Not part of this code; report both codes when the patient has both conditions.

  • 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-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • 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)
NotesFrom Chapter M00-M99

Instructional notes from the ICD-10-CM tabular list.

  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

More Specific Codes (10)

M1A.20Drug-induced chronic gout, unspecified site→M1A.21Drug-induced chronic gout, shoulder→M1A.22Drug-induced chronic gout, elbow→M1A.23Drug-induced chronic gout, wrist→M1A.24Drug-induced chronic gout, hand→M1A.25Drug-induced chronic gout, hip→M1A.26Drug-induced chronic gout, knee→M1A.27Drug-induced chronic gout, ankle and foot→M1A.28Drug-induced chronic gout, vertebrae→M1A.29Drug-induced chronic gout, multiple sites→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with M1A.2.