O29 — Complications of anesthesia during pregnancy
Is O29 billable?
No — O29 is a non-billable header code. O29 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 56 billable codes beneath O29.
Billable codes under this header
- 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
- O29.60Failed 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
- O29.90Unspecified 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
- 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
- O29.111Cardiac 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
- O29.211Cerebral 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
- O29.3X1Toxic 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
- O29.5X1Other 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
- O29.8X1Other 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 at a glance
| Code | O29 |
|---|---|
| Description | Complications of anesthesia during pregnancy |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Use additional code
Report an additional code alongside O29 to fully describe the condition. O29 is sequenced first.
- code, if necessary, to identify the complication
Excludes2 — not included here
The conditions below are not part of O29, but a patient may have both at the same time. When documentation supports it, O29 and the excluded code may both be reported.
Includes
Conditions classified to O29.
- maternal complications arising from the administration of a general, regional or local anesthetic, analgesic or other sedation during pregnancy
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O29 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 to fully describe the condition. O29 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 O29, but a patient may have both at the same time. When documentation supports it, O29 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O20-O29
The conditions below are not part of O29, but a patient may have both at the same time. When documentation supports it, O29 and the excluded code may both be reported.
What codes fall under O29? (9)
- O29.0Pulmonary complications of anesthesia during pregnancynot billable
- O29.1Cardiac complications of anesthesia during pregnancynot billable
- O29.2Central nervous system complications of anesthesia during pregnancynot billable
- O29.3Toxic reaction to local anesthesia during pregnancynot billable
- O29.4Spinal and epidural anesthesia induced headache during pregnancynot billable
- O29.5Other complications of spinal and epidural anesthesia during pregnancynot billable
- O29.6Failed or difficult intubation for anesthesia during pregnancynot billable
- O29.8Other complications of anesthesia during pregnancynot billable
- O29.9Unspecified complication of anesthesia during pregnancynot billable
How long has O29 existed?
O29 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 O29?
ICD-10-CM declares these codes mutually exclusive with O29 — exactly one of each pair can be correct for a given encounter.