O98.919 — Unspecified maternal infectious and parasitic disease complicating pregnancy, unspecified trimester
Is O98.919 billable?
Yes, but O98.919 is an unspecified code. O98.919 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, O98.919 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 O98.919 — the more specific alternatives are listed below.
More specific alternatives
- O98.911Unspecified maternal infectious and parasitic disease complicating pregnancy, first trimester
- O98.912Unspecified maternal infectious and parasitic disease complicating pregnancy, second trimester
- O98.913Unspecified maternal infectious and parasitic disease complicating pregnancy, third trimester
O98.919 at a glance
| Code | O98.919 |
|---|---|
| Description | Unspecified maternal infectious and parasitic disease complicating pregnancy, unspecified trimester |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does O98.919 group to?
O98.919 sits in MDC 14 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.
- 817Other Antepartum Diagnoses with O.R. Procedures with MCCsurgical
- 818Other Antepartum Diagnoses with O.R. Procedures with CCsurgical
- 819Other Antepartum Diagnoses with O.R. Procedures without CC/MCCsurgical
How is O98.919 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under O98.91, the nearest indexed parent of O98.919. Use them to find the family, then select the specific code.
- Pregnancy › complicated by › infection (single) (uterine)
- Pregnancy › complicated by › infection › parasitic disease (single) (uterine)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O98.919 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- supervision of normal pregnancy (Z34.-)
Use additional code — inherited from Chapter 15
Report an additional code alongside O98.919 to fully describe the condition. O98.919 is sequenced first.
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Use additional code — inherited from O98
Report an additional code alongside O98.919 to fully describe the condition. O98.919 is sequenced first.
- code (Chapter 1), to identify specific infectious or parasitic disease
Excludes2 — not included here — inherited from Chapter 15
The conditions below are not part of O98.919, but a patient may have both at the same time. When documentation supports it, O98.919 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O98
The conditions below are not part of O98.919, but a patient may have both at the same time. When documentation supports it, O98.919 and the excluded code may both be reported.
How long has O98.919 existed?
O98.919 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.
What other codes are in the O98.91 family? (3)
- O98.911Unspecified maternal infectious and parasitic disease complicating pregnancy, first trimester
- O98.912Unspecified maternal infectious and parasitic disease complicating pregnancy, second trimester
- O98.913Unspecified maternal infectious and parasitic disease complicating pregnancy, third trimester