M1A.4590
Other secondary chronic gout, unspecified hip, without tophus (tophi)
M1A.4590 (also written M1A4590) is a billable ICD-10-CM diagnosis code for other secondary chronic gout, unspecified hip, without 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). Its 7th character, 0, means without 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.
Code first
If the underlying condition listed here is present and known, sequence it first.
- associated condition
Use additional code
Add the listed code as a secondary code, if known.
- 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.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (10 notes)
- 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)
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition