A06.1 — Chronic intestinal amebiasis
Is A06.1 billable?
Yes — A06.1 is billable for FY2027. A06.1 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. A06.1 may be submitted for encounters from October 1, 2026 through September 30, 2027.
A06.1 at a glance
| Code | A06.1 |
|---|---|
| Description | Chronic intestinal amebiasis |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does A06.1 group to?
A06.1 sits in MDC 06 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 371Major Gastrointestinal Disorders and Peritoneal Infections with MCCmedical
- 372Major Gastrointestinal Disorders and Peritoneal Infections with CCmedical
- 373Major Gastrointestinal Disorders and Peritoneal Infections without CC/MCCmedical
As a secondary diagnosis, A06.1 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is A06.1 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to A06.1. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Amebiasis › chronic
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative › amebic
- Diarrhea, diarrheal › amebic › chronic (disease) (infantile) (inflammatory)
- Dysentery, dysenteric › amebic › chronic (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical)
- Enteritis › amebic › chronic (acute) (diarrheal) (hemorrhagic) (noninfective)
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative › intestine, intestinal › amebic
Excludes1 — never code together — inherited from A06
The conditions below can never be reported together with A06.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- other protozoal intestinal diseases (A07.-)
Use additional code — inherited from Chapter 1
Report an additional code alongside A06.1 to fully describe the condition. A06.1 is sequenced first.
- code to identify resistance to antimicrobial drugs (Z16.-)
Excludes2 — not included here — inherited from Chapter 1
The conditions below are not part of A06.1, but a patient may have both at the same time. When documentation supports it, A06.1 and the excluded code may both be reported.
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Excludes2 — not included here — inherited from A06
The conditions below are not part of A06.1, but a patient may have both at the same time. When documentation supports it, A06.1 and the excluded code may both be reported.
How long has A06.1 existed?
A06.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.