O29.01 – Aspiration pneumonitis due to anesthesia during pregnancy

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

Non-billable header

ICD-10-CM code O29.01

Code: O29.01 (claims format: O2901)
Description: Aspiration pneumonitis due to 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
Parent codes: O29 › O29.0

Billable codes under O29.01

O29.01 is a header code and cannot be used on claims. Choose the most specific code:

Notes for O29.01

Applicable to:

Inhalation of stomach contents or secretions NOS due to anesthesia during pregnancy
Mendelson's syndrome due to anesthesia during pregnancy

Notes inherited from parent codes

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

O29 – Complications of anesthesia during pregnancy

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

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)

Index terms for O29.01

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in O29.0

Frequently asked questions

What is ICD-10 code O29.01?

O29.01 is the ICD-10-CM code for aspiration pneumonitis due to anesthesia during pregnancy, in the block O20-O29 (Other maternal disorders predominantly related to pregnancy).

Is O29.01 a billable code?

No. O29.01 is a header code with more specific child codes; report one of the billable codes listed above.

What category does O29.01 belong to?

It belongs to category O29 – Complications of anesthesia during pregnancy.

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.