ICD-10-CM 2027
ICD-10 code for cystitis amebiasis
From the official ICD-10-CM alphabetic index entry “Amebiasis › cystitis”. Page updated September 29, 2026.
About coding cystitis amebiasis
The ICD-10-CM code for cystitis amebiasis is A06.81 (Amebic cystitis).
Within A06.8 (amebic infection of other sites), A06.81 is specifically for amebic cystitis. Related codes cover other amebic genitourinary infections (A06.82) and other amebic infections (A06.89).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 867 (Other Infectious and Parasitic Diseases Diagnoses with MCC, relative weight 2.1859), DRG 868 (Other Infectious and Parasitic Diseases Diagnoses with CC, relative weight 1.0235) and DRG 869 (Other Infectious and Parasitic Diseases Diagnoses without CC/MCC, relative weight 0.6787), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about cystitis amebiasis ICD-10 codes
What is the ICD-10 code for cystitis amebiasis?
- A06.81 — Amebic cystitis.
Is A06.81 billable?
- Yes. A06.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A06.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A06.81 as a principal diagnosis.
Is A06.81 a CC or MCC?
- A06.81 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.