O89.01 — Aspiration pneumonitis due to anesthesia during the puerperium
O89.01 is a billable, specific ICD-10-CM code for aspiration pneumonitis due to anesthesia during the puerperium. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Inhalation of stomach contents or secretions NOS due to anesthesia during the puerperium
- Mendelson's syndrome due to anesthesia during the puerperium
Other codes that can never be billed with O89.01
These codes carry an Excludes1 note pointing at O89.01. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading O89.01 alone.
- J95.4Chemical pneumonitis due to anesthesia
Risk adjustment
O89.01 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
O89.01 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
- A57224Billing and Coding: Respiratory Care
How O89.01 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to O89.01.
- Mendelson's syndrome›postpartum, puerperal
- Pneumonitis›postanesthetic›postpartum, puerperal
- Inhalation›stomach contents or secretions›due to anesthesia or other sedation›postpartum, puerperal
- Pneumonitis›aspiration›due to›anesthesia›during›puerperium
Related codes at this level
Codes that share O89.0. If O89.01 is not quite right, the correct code is usually one of these.
Questions about O89.01
- Is O89.01 a billable ICD-10-CM code?
- Yes. O89.01 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does O89.01 sit in the tabular list?
- Pregnancy, childbirth and the puerperium (O00-O9A), in the block Complications predominantly related to the puerperium (O85-O92).