N43.1 Infected hydrocele

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Use additional code

• code (B95-B97), to identify infectious agent

Applies from N43 Hydrocele and spermatocele

Includes

• hydrocele of spermatic cord, testis or tunica vaginalis

Excludes1 (never code together)

• congenital hydrocele (P83.5)

MS-DRG index

Defines the logic of DRG(s) 727-728 in MDC 12.

Approximate ICD-9-CM (GEMs)

• 603.1 Infected hydrocele

Diagnosis Index entries for N43.1

• Hydrocele (spermatic cord) (testis) (tunica vaginalis) › infected

Nearby codes

• N43 Hydrocele and spermatocele
• N43.0 Encysted hydrocele
• N43.1 Infected hydrocele (this code)
• N43.2 Other hydrocele
• N43.3 Hydrocele, unspecified
• N43.4 Spermatocele of epididymis
• N43.40 Spermatocele of epididymis, unspecified
• N43.41 Spermatocele of epididymis, single