ICD-10-CM 2027 diagnosis code
O29.09Other pulmonary complications of anesthesia during pregnancy
O29.09 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About O29.09
O29.09 is the ICD-10-CM diagnosis code for other pulmonary complications of anesthesia during pregnancy. It belongs to category O29 (complications of anesthesia during pregnancy), block O20-O29 (other maternal disorders predominantly related to pregnancy) and chapter 15 (pregnancy, childbirth and the puerperium). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.
Within O29.0, choose O29.09 (Other pulmonary complications of anesthesia during pregnancy) only when documentation doesn't support a more specific option: aspiration pneumonitis due to anesthesia during pregnancy (O29.01) and pressure collapse of lung due to anesthesia during pregnancy (O29.02).
To report this condition, pick the subcode that matches the documentation: O29.091 (first trimester), O29.092 (second trimester), O29.093 (third trimester) and O29.099 (unspecified trimester).
Use an additional code, if necessary, to identify the complication.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under O29.09
- O29.091Other pulmonary complications of anesthesia during pregnancy, first trimesterBillable
- O29.092Other pulmonary complications of anesthesia during pregnancy, second trimesterBillable
- O29.093Other pulmonary complications of anesthesia during pregnancy, third trimesterBillable
- O29.099Other pulmonary complications of anesthesia during pregnancy, unspecified trimesterBillable
Notes that apply from higher levels
Instructions written at a parent level also apply to O29.09.
› From O29 Complications of anesthesia during pregnancy
- maternal complications arising from the administration of a general, regional or local anesthetic, analgesic or other sedation during pregnancy
- code, if necessary, to identify the complication
Broader instructions also apply from O20-O29 Other maternal disorders predominantly related to pregnancy and Chapter 15: Pregnancy, childbirth and the puerperium.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to O29.09.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about O29.09
Is O29.09 billable?
- No. O29.09 is a header code. Report one of its more specific subcodes instead.