Z03.810 — Encounter for observation for suspected exposure to anthrax ruled out
Is Z03.810 billable?
Yes — Z03.810 is billable for FY2027. Z03.810 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Z03.810 may be submitted for encounters from October 1, 2026 through September 30, 2027.
Z03.810 at a glance
| Code | Z03.810 |
|---|---|
| Description | Encounter for observation for suspected exposure to anthrax ruled out |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does Z03.810 group to?
Z03.810 sits in MDC 23 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 951Other Factors Influencing Health Statusmedical
How is Z03.810 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Z03.810. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Encounter › suspected exposure, ruled out › anthrax (with health service) (for)
- Encounter › observation › exposure to › anthrax (with health service) (for)
- Observation › suspected, ruled out › exposure › anthrax (following) (for) (without need for further medical care)
Excludes1 — never code together — inherited from Z03
The conditions below can never be reported together with Z03.810 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Z00-Z13
The conditions below are not part of Z03.810, but a patient may have both at the same time. When documentation supports it, Z03.810 and the excluded code may both be reported.
How long has Z03.810 existed?
Z03.810 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.