ICD-10-CM › M00-M99 › M05-M14 › M1A.9 Chronic gout, unspecified › M1A.9XX1

M1A.9XX1

Chronic gout, unspecified, with tophus (tophi)

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2010 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2010 Added to the draft code set draft Chronic gout, unspecified, with tophus (tophi)

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from M1A Chronic gout

Seventh character required

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

Excludes1 - never coded here

  • gout NOS (M10.-)

Excludes2 - not included here

  • acute gout (M10.-)

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 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)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Codes in the same group

CodeDescriptionStatus
M1A.9XX0 Chronic gout, unspecified, without tophus (tophi) Valid