M1A.30X1

Chronic gout due to renal impairment, unspecified site, with tophus (tophi)

FY2027Chapter 13: Diseases of the musculoskeletal system and connective tissue/M05–M14 Inflammatory polyarthropathies

M1A.30X1 (also written M1A30X1) is a billable ICD-10-CM diagnosis code for chronic gout due to renal impairment, unspecified site, with tophus (tophi). It is part of the FY2027 code set, effective October 1, 2026. It is one of the 242 codes in category M1A (Chronic gout). The Alphabetic Index lists it under 1 entry. Its 7th character, 1, means with tophus (tophi). Its coding notes include a Code first instruction, a Use additional code instruction, 1 Excludes1 entry and 11 Excludes2 entries.

7th character

Category M1A requires a 7th character. M1A.30 has only 5 characters, so a placeholder X fills the 6th position.

Assembled code M1A.30X1 Open code

Code first

If the underlying condition listed here is present and known, sequence it first.

Inherited from M1A.3 Chronic gout due to renal impairment
  • associated renal disease

Use additional code

Add the listed code as a secondary code, if known.

Inherited from M1A Chronic gout
  • 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)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Inherited from M1A Chronic gout

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from M1A Chronic gout
Also from chapter/block level (10 notes)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • 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)

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Alphabetic Index terms

Terms the official Alphabetic Index lists for M1A.30. This code adds the 7th character. 1 entry