O29 – Complications of anesthesia during pregnancy

ICD-10-CM 2027 diagnosis code · Other maternal disorders predominantly related to pregnancy

Non-billable header

ICD-10-CM code O29

Code: O29 (claims format: O29)
Description: Complications of anesthesia during pregnancy
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block: O20-O29 Other maternal disorders predominantly related to pregnancy

Billable codes under O29

O29 is a header code and cannot be used on claims. Choose the most specific code:

O29.0 – Pulmonary complications of anesthesia during pregnancyHeader (more codes below)
O29.1 – Cardiac complications of anesthesia during pregnancyHeader (more codes below)
O29.2 – Central nervous system complications of anesthesia during pregnancyHeader (more codes below)
O29.3 – Toxic reaction to local anesthesia during pregnancyHeader (more codes below)
O29.4 – Spinal and epidural anesthesia induced headache during pregnancyHeader (more codes below)
O29.5 – Other complications of spinal and epidural anesthesia during pregnancyHeader (more codes below)
O29.6 – Failed or difficult intubation for anesthesia during pregnancyHeader (more codes below)
O29.8 – Other complications of anesthesia during pregnancyHeader (more codes below)
O29.9 – Unspecified complication of anesthesia during pregnancyHeader (more codes below)

Notes for O29

Includes:

maternal complications arising from the administration of a general, regional or local anesthetic, analgesic or other sedation during pregnancy

Excludes2 (not included here):

complications of anesthesia during labor and delivery (O74.-)
complications of anesthesia during the puerperium (O89.-)

Use additional code:

code, if necessary, to identify the complication

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block O20-O29

Excludes2 (not included here):

maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)

Frequently asked questions

What is ICD-10 code O29?

O29 is the ICD-10-CM code for complications of anesthesia during pregnancy, in the block O20-O29 (Other maternal disorders predominantly related to pregnancy).

Is O29 a billable code?

No. O29 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.