ICD-10-CM category
O29 Complications of anaesthesia during pregnancy
O29 is a category, not a billable code. Report one of the 56 complete codes below.
O29.0…
12 codes
- O29.011Aspiration pneumonitis due to anesthesia during pregnancy, first trimester
- O29.012Aspiration pneumonitis due to anesthesia during pregnancy, second trimester
- O29.013Aspiration pneumonitis due to anesthesia during pregnancy, third trimester
- O29.019Aspiration pneumonitis due to anesthesia during pregnancy, unspecified trimester
- O29.021Pressure collapse of lung due to anesthesia during pregnancy, first trimester
- O29.022Pressure collapse of lung due to anesthesia during pregnancy, second trimester
- O29.023Pressure collapse of lung due to anesthesia during pregnancy, third trimester
- O29.029Pressure collapse of lung due to anesthesia during pregnancy, unspecified trimester
- O29.091Other pulmonary complications of anesthesia during pregnancy, first trimester
- O29.092Other pulmonary complications of anesthesia during pregnancy, second trimester
- O29.093Other pulmonary complications of anesthesia during pregnancy, third trimester
- O29.099Other pulmonary complications of anesthesia during pregnancy, unspecified trimester
O29.1…
12 codes
- O29.111Cardiac arrest due to anesthesia during pregnancy, first trimester
- O29.112Cardiac arrest due to anesthesia during pregnancy, second trimester
- O29.113Cardiac arrest due to anesthesia during pregnancy, third trimester
- O29.119Cardiac arrest due to anesthesia during pregnancy, unspecified trimester
- O29.121Cardiac failure due to anesthesia during pregnancy, first trimester
- O29.122Cardiac failure due to anesthesia during pregnancy, second trimester
- O29.123Cardiac failure due to anesthesia during pregnancy, third trimester
- O29.129Cardiac failure due to anesthesia during pregnancy, unspecified trimester
- O29.191Other cardiac complications of anesthesia during pregnancy, first trimester
- O29.192Other cardiac complications of anesthesia during pregnancy, second trimester
- O29.193Other cardiac complications of anesthesia during pregnancy, third trimester
- O29.199Other cardiac complications of anesthesia during pregnancy, unspecified trimester
O29.2…
8 codes
- O29.211Cerebral anoxia due to anesthesia during pregnancy, first trimester
- O29.212Cerebral anoxia due to anesthesia during pregnancy, second trimester
- O29.213Cerebral anoxia due to anesthesia during pregnancy, third trimester
- O29.219Cerebral anoxia due to anesthesia during pregnancy, unspecified trimester
- O29.291Other central nervous system complications of anesthesia during pregnancy, first trimester
- O29.292Other central nervous system complications of anesthesia during pregnancy, second trimester
- O29.293Other central nervous system complications of anesthesia during pregnancy, third trimester
- O29.299Other central nervous system complications of anesthesia during pregnancy, unspecified trimester
O29.3…
4 codes
- O29.3X1Toxic reaction to local anesthesia during pregnancy, first trimester
- O29.3X2Toxic reaction to local anesthesia during pregnancy, second trimester
- O29.3X3Toxic reaction to local anesthesia during pregnancy, third trimester
- O29.3X9Toxic reaction to local anesthesia during pregnancy, unspecified trimester
O29.4…
4 codes
- O29.40Spinal and epidural anesthesia induced headache during pregnancy, unspecified trimester
- O29.41Spinal and epidural anesthesia induced headache during pregnancy, first trimester
- O29.42Spinal and epidural anesthesia induced headache during pregnancy, second trimester
- O29.43Spinal and epidural anesthesia induced headache during pregnancy, third trimester
O29.5…
4 codes
- O29.5X1Other complications of spinal and epidural anesthesia during pregnancy, first trimester
- O29.5X2Other complications of spinal and epidural anesthesia during pregnancy, second trimester
- O29.5X3Other complications of spinal and epidural anesthesia during pregnancy, third trimester
- O29.5X9Other complications of spinal and epidural anesthesia during pregnancy, unspecified trimester
O29.6…
4 codes
- O29.60Failed or difficult intubation for anesthesia during pregnancy, unspecified trimester
- O29.61Failed or difficult intubation for anesthesia during pregnancy, first trimester
- O29.62Failed or difficult intubation for anesthesia during pregnancy, second trimester
- O29.63Failed or difficult intubation for anesthesia during pregnancy, third trimester
O29.8…
4 codes
- O29.8X1Other complications of anesthesia during pregnancy, first trimester
- O29.8X2Other complications of anesthesia during pregnancy, second trimester
- O29.8X3Other complications of anesthesia during pregnancy, third trimester
- O29.8X9Other complications of anesthesia during pregnancy, unspecified trimester
O29.9…
4 codes
- O29.90Unspecified complication of anesthesia during pregnancy, unspecified trimester
- O29.91Unspecified complication of anesthesia during pregnancy, first trimester
- O29.92Unspecified complication of anesthesia during pregnancy, second trimester
- O29.93Unspecified complication of anesthesia during pregnancy, third trimester
Outside the US? O29 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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