O98.813 — Other maternal infectious and parasitic diseases complicating pregnancy, third trimester
Is O98.813 billable?
Yes — O98.813 is billable for FY2027. O98.813 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. O98.813 may be submitted for encounters from October 1, 2026 through September 30, 2027.
O98.813 at a glance
| Code | O98.813 |
|---|---|
| Description | Other maternal infectious and parasitic diseases complicating pregnancy, third trimester |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does O98.813 group to?
O98.813 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
As a secondary diagnosis, O98.813 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is O98.813 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under O98.81, the nearest indexed parent of O98.813. Use them to find the family, then select the specific code.
- Pregnancy › complicated by › sepsis (single) (uterine)
- Infection, infected, infective › streptococcal NEC › B genitourinary complicating › pregnancy (opportunistic)
- Pregnancy › complicated by › infection › specified type NEC (single) (uterine)
- Pregnancy › complicated by › infection › parasitic disease › specified NEC (single) (uterine)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O98.813 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 O98.813 to fully describe the condition. O98.813 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 O98.813 to fully describe the condition. O98.813 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 O98.813, but a patient may have both at the same time. When documentation supports it, O98.813 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O98
The conditions below are not part of O98.813, but a patient may have both at the same time. When documentation supports it, O98.813 and the excluded code may both be reported.
How long has O98.813 existed?
O98.813 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.