All ICD10 Codes

M1A

Non-Billable
ChapterM00–M99
Rankcategory
Official Description

Chronic gout

Use a more specific code (1 billable, 5 non-billable)
M1A.0Idiopathic chronic gouthas subcodesM1A.1Lead-induced chronic gouthas subcodesM1A.2Drug-induced chronic gouthas subcodesM1A.3Chronic gout due to renal impairmenthas subcodesM1A.4Other secondary chronic gouthas subcodesM1A.9Chronic gout, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

CH13 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • gout NOS (M10.-)
Excludes2(Not included here. Code separately if applicable.)
  • 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)

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M05-M14Inflammatory polyarthropathies (M05-M14)
M1AChronic goutNot billable
M1A.0Idiopathic chronic goutSubcodes
M1A.1Lead-induced chronic goutSubcodes
M1A.2Drug-induced chronic goutSubcodes
M1A.3Chronic gout due to renal impairmentSubcodes
M1A.4Other secondary chronic goutSubcodes
M1A.9Chronic gout, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M1A:

chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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