A06.81 Amebic cystitis

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

Applies from A06 Amebiasis

Includes

• infection due to Entamoeba histolytica

Excludes1 (never code together)

• other protozoal intestinal diseases (A07.-)

Excludes2 (not included here)

• acanthamebiasis (B60.1-)
• Naegleriasis (B60.2)

MS-DRG index

Defines the logic of DRG(s) 867-869 in MDC 18.

Approximate ICD-9-CM (GEMs)

• 006.8 Amebic infection of other sites (approximate)

Code annotations containing back-references to A06.81

Back-references to A06.8

• Type 1 Excludes: N48.1 Balanitis ("amebic balanitis (A06.8)")
• Type 1 Excludes: N51 Disorders of male genital organs in diseases classified elsewhere ("amebic balanitis (A06.8)")

Back-references to A06

• Type 2 Excludes: P37 Other congenital infectious and parasitic diseases ("infectious neonatal diarrhea (A00-A09)")

Diagnosis Index entries for A06.81

• Amebiasis › cystitis
• Cystitis (exudative) (hemorrhagic) (septic) (suppurative) › amebic

Nearby codes

• A06.4 Amebic liver abscess
• A06.5 Amebic lung abscess
• A06.6 Amebic brain abscess
• A06.7 Cutaneous amebiasis
• A06.8 Amebic infection of other sites
• A06.81 Amebic cystitis (this code)
• A06.82 Other amebic genitourinary infections
• A06.89 Other amebic infections
• A06.9 Amebiasis, unspecified