A08.8 — Other specified intestinal infections
Is A08.8 billable?
Yes, but A08.8 is an unspecified code. A08.8 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, A08.8 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting A08.8 — the more specific alternatives are listed below.
A08.8 at a glance
| Code | A08.8 |
|---|---|
| Description | Other specified intestinal infections |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does A08.8 group to?
A08.8 sits in MDC 06 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 391Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCCmedical
- 392Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCCmedical
How is A08.8 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to A08.8. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Diarrhea, diarrheal › due to › specified organism NEC (disease) (infantile) (inflammatory)
- Enteritis › infectious NOS › specified organism NEC (acute) (diarrheal) (hemorrhagic) (noninfective)
- Infection, infected, infective › intestine, intestinal › specified NEC (opportunistic)
- Arthritis, arthritic › in › enteritis, infectious NEC › specified organism NEC (acute) (chronic) (nonpyogenic) (subacute)
Excludes1 — never code together — inherited from A08
The conditions below can never be reported together with A08.8 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 1
Report an additional code alongside A08.8 to fully describe the condition. A08.8 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 A08.8, but a patient may have both at the same time. When documentation supports it, A08.8 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)
How long has A08.8 existed?
A08.8 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.