O85 — Puerperal sepsis
Is O85 billable?
Yes — O85 is billable for FY2027. O85 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. O85 may be submitted for encounters from October 1, 2026 through September 30, 2027.
O85 at a glance
| Code | O85 |
|---|---|
| Description | Puerperal sepsis |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does O85 group to?
O85 sits in MDC 14 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.
- 769Postpartum and Post Abortion Diagnoses with O.R. Proceduressurgical
As a secondary diagnosis, O85 is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG.
How is O85 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to O85. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Pelviperitonitis › puerperal
- Peritonitis › puerperal, postpartum, childbirth (adhesive) (bacterial) (fibrinous) (hemorrhagic) (idiopathic) (localized) (perforative) (primary) (with adhesions) (with effusion)
- Puerperal, puerperium › metroperitonitis (complicated by, complications)
- Puerperal, puerperium › parametritis (complicated by, complications)
- Puerperal, puerperium › pelviperitonitis (complicated by, complications)
- Puerperal, puerperium › peritoneal infection (complicated by, complications)
- Puerperal, puerperium › peritonitis (complicated by, complications)
- Puerperal, puerperium › pyemia (complicated by, complications)
- Puerperal, puerperium › pyohemia (complicated by, complications)
- Puerperal, puerperium › salpingoperitonitis (complicated by, complications)
- Puerperal, puerperium › sepsis (complicated by, complications)
- Pyemia, pyemic › puerperal, postpartum, childbirth (fever) (infection) (purulent)
Excludes1 — never code together
The conditions below can never be reported together with O85 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
Report an additional code alongside O85 to fully describe the condition. O85 is sequenced first.
Excludes2 — not included here
The conditions below are not part of O85, but a patient may have both at the same time. When documentation supports it, O85 and the excluded code may both be reported.
Inclusion terms
Alternative wording in documentation that is classified to O85.
- Postpartum sepsis
- Puerperal peritonitis
- Puerperal pyemia
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O85 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 O85 to fully describe the condition. O85 is sequenced first.
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Excludes2 — not included here — inherited from Chapter 15
The conditions below are not part of O85, but a patient may have both at the same time. When documentation supports it, O85 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O85-O92
The conditions below are not part of O85, but a patient may have both at the same time. When documentation supports it, O85 and the excluded code may both be reported.
How long has O85 existed?
O85 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.
Which codes are confused with O85?
ICD-10-CM declares these codes mutually exclusive with O85 — exactly one of each pair can be correct for a given encounter.