ICD-10-CM
ICD-10 code for Failure, failed Leydig's cell, adult: E29.1
The ICD-10-CM index points "Failure, failed Leydig's cell, adult" to E29.1, Testicular hypofunction. E29.1 is a billable code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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