ICD-10-CM 2027
ICD-10 code for amebic abscess
From the official ICD-10-CM alphabetic index entry “Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › amebic”. Page updated September 29, 2026.
About coding amebic abscess
The ICD-10-CM code for amebic abscess is A06.4 (Amebic liver abscess). The official index lists 6 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on A06.4.
Within A06 (amebiasis), A06.4 is specifically for amebic liver abscess. Related codes cover acute amebic dysentery (A06.0), chronic intestinal amebiasis (A06.1), amebic nondysenteric colitis (A06.2), Ameboma of intestine (A06.3), amebic lung abscess (A06.5), amebic brain abscess (A06.6), cutaneous amebiasis (A06.7), amebic infection of other sites (A06.8) and 1 more.
As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" 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 441 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC, relative weight 1.8219), DRG 442 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC, relative weight 0.9602) and DRG 443 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC, relative weight 0.6885), in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific amebic abscess codes (official index)
- brain (and liver or lung abscess) A06.6 — Amebic brain abscess
- genitourinary tract A06.82 — Other amebic genitourinary infections
- liver (without mention of brain or lung abscess) A06.4 — Amebic liver abscess
- lung (and liver) (without mention of brain abscess) A06.5 — Amebic lung abscess
- specified site NEC A06.89 — Other amebic infections
- spleen A06.89 — Other amebic infections
Common questions about amebic abscess ICD-10 codes
What is the ICD-10 code for amebic abscess?
- A06.4 — Amebic liver abscess. More specific codes apply when the documentation supports them: A06.6, A06.82, A06.4, A06.5 and others below.
What is the ICD-10 code for brain amebic abscess?
- A06.6 — Amebic brain abscess.
What is the ICD-10 code for genitourinary tract amebic abscess?
- A06.82 — Other amebic genitourinary infections.
What is the ICD-10 code for liver amebic abscess?
- A06.4 — Amebic liver abscess.
What is the ICD-10 code for lung amebic abscess?
- A06.5 — Amebic lung abscess.
What is the ICD-10 code for spleen amebic abscess?
- A06.89 — Other amebic infections.
Is A06.4 billable?
- Yes. A06.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A06.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A06.4 as a principal diagnosis.
Is A06.4 a CC or MCC?
- A06.4 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.