M1A.4521

Other secondary chronic gout, left hip, with tophus (tophi)

Billable / specific

M1A.4521 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Note: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Not coded here — never report together with this code.

Not included here — may be reported together when both conditions exist.

arthropathic psoriasis (L40.5-) (from M1A)
certain conditions originating in the perinatal period (P04-P96) (from M1A)
certain infectious and parasitic diseases (A00-B99) (from M1A)
compartment syndrome (traumatic) (T79.A-) (from M1A)
complications of pregnancy, childbirth and the puerperium (O00-O9A) (from M1A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from M1A)
endocrine, nutritional and metabolic diseases (E00-E88) (from M1A)
injury, poisoning and certain other consequences of external causes (S00-T88) (from M1A)
neoplasms (C00-D49) (from M1A)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from M1A)
acute gout (M10.-) (from M1A)

Sequence the underlying condition first.

Add a code to identify the following, if applicable.

code to identify: (from M1A)
Autonomic neuropathy in diseases classified elsewhere (G99.0) (from M1A)
Calculus of urinary tract in diseases classified elsewhere (N22) (from M1A)
Cardiomyopathy in diseases classified elsewhere (I43) (from M1A)
Disorders of external ear in diseases classified elsewhere (H61.1-, H62.8-) (from M1A)
Disorders of iris and ciliary body in diseases classified elsewhere (H22) (from M1A)
Glomerular disorders in diseases classified elsewhere (N08) (from M1A)

The 7th character values that apply to this code (defined at M1A). Use the placeholder "X" for missing positions.

Character	Meaning
0	without tophus (tophi)
1	with tophus (tophi)