ICD-10-CM 2027
ICD-10 code for idiopathic gout
From the official ICD-10-CM alphabetic index entry “Gout, gouty (acute) (attack) (flare) › idiopathic”. Page updated September 29, 2026.
About coding idiopathic gout
The ICD-10-CM code for idiopathic gout is M10.00 (Idiopathic gout, unspecified site). The official index lists 10 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M10.00.
Within M10.0, choose M10.00 (unspecified site) only when documentation doesn't support a more specific option: shoulder (M10.01), elbow (M10.02), wrist (M10.03), hand (M10.04), hip (M10.05), knee (M10.06), ankle and foot (M10.07), vertebrae (M10.08) and 1 more.
Use an additional 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) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific idiopathic gout codes (official index)
- ankle M10.07 — Idiopathic gout, ankle and foot
- elbow M10.02 — Idiopathic gout, elbow
- foot joint M10.07 — Idiopathic gout, ankle and foot
- hand joint M10.04 — Idiopathic gout, hand
- hip M10.05 — Idiopathic gout, hip
- knee M10.06 — Idiopathic gout, knee
- multiple site M10.09 — Idiopathic gout, multiple sites
- shoulder M10.01 — Idiopathic gout, shoulder
- vertebrae M10.08 — Idiopathic gout, vertebrae
- wrist M10.03 — Idiopathic gout, wrist
Common questions about idiopathic gout ICD-10 codes
What is the ICD-10 code for idiopathic gout?
- M10.00 — Idiopathic gout, unspecified site. More specific codes apply when the documentation supports them: M10.07, M10.02, M10.07, M10.04 and others below.
What is the ICD-10 code for ankle idiopathic gout?
- M10.07 — Idiopathic gout, ankle and foot (header code; choose a more specific subcode).
What is the ICD-10 code for elbow idiopathic gout?
- M10.02 — Idiopathic gout, elbow (header code; choose a more specific subcode).
What is the ICD-10 code for foot joint idiopathic gout?
- M10.07 — Idiopathic gout, ankle and foot (header code; choose a more specific subcode).
What is the ICD-10 code for hand joint idiopathic gout?
- M10.04 — Idiopathic gout, hand (header code; choose a more specific subcode).
What is the ICD-10 code for hip idiopathic gout?
- M10.05 — Idiopathic gout, hip (header code; choose a more specific subcode).
What is the ICD-10 code for knee idiopathic gout?
- M10.06 — Idiopathic gout, knee (header code; choose a more specific subcode).
Is M10.00 billable?
- Yes. M10.00 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M10.00 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M10.00 as a principal diagnosis.
Is M10.00 a CC or MCC?
- No. M10.00 is neither a CC nor an MCC under MS-DRG v44.0.