O29.021 — Pressure collapse of lung due to anesthesia during pregnancy, first trimester
Is O29.021 billable?
Yes — O29.021 is billable for FY2027. O29.021 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. O29.021 may be submitted for encounters from October 1, 2026 through September 30, 2027.
O29.021 at a glance
| Code | O29.021 |
|---|---|
| Description | Pressure collapse of lung due to anesthesia during pregnancy, first trimester |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does O29.021 group to?
O29.021 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 O29.021 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under O29.02, the nearest indexed parent of O29.021. Use them to find the family, then select the specific code.
- Collapse › lung › pressure due to anesthesiaor other sedation › in pregnancy
- Pregnancy › complicated by › adverse effect anesthesia › pressure collapse of lung (single) (uterine)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O29.021 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 O29.021 to fully describe the condition. O29.021 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 O29
Report an additional code alongside O29.021 to fully describe the condition. O29.021 is sequenced first.
- code, if necessary, to identify the complication
Excludes2 — not included here — inherited from Chapter 15
The conditions below are not part of O29.021, but a patient may have both at the same time. When documentation supports it, O29.021 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O20-O29
The conditions below are not part of O29.021, but a patient may have both at the same time. When documentation supports it, O29.021 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O29
The conditions below are not part of O29.021, but a patient may have both at the same time. When documentation supports it, O29.021 and the excluded code may both be reported.
How long has O29.021 existed?
O29.021 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.