ICD-10 Code for Mendelson's syndrome
Also indexed as (due to anesthesia)
The ICD-10-CM code for mendelson's syndrome is J95.4 — Chemical pneumonitis due to anesthesia. This is the code the Alphabetic Index gives for mendelson's syndrome with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
Which mendelson's syndrome code should you use?
The Alphabetic Index lists 4 codes under Mendelson's syndrome. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| in labor and delivery | O74.0 | Aspiration pneumonitis due to anesthesia during labor and delivery | |
| in pregnancy | O29.01 | Aspiration pneumonitis due to anesthesia during pregnancy | not billable |
| obstetric | O74.0 | Aspiration pneumonitis due to anesthesia during labor and delivery | |
| postpartum, puerperal | O89.01 | Aspiration pneumonitis due to anesthesia during the puerperium |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources