O89.09Other pulmonary complications of anesthesia during the puerperium

O89.09 is the ICD-10-CM diagnosis code for other pulmonary complications of anesthesia during the puerperium. It belongs to category O89 (complications of anesthesia during the puerperium), block O85-O92 (complications predominantly related to the puerperium) and chapter 15 (pregnancy, childbirth and the puerperium). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within O89.0, choose O89.09 (Other pulmonary complications of anesthesia during the puerperium) only when documentation doesn't support a more specific option: aspiration pneumonitis due to anesthesia during the puerperium (O89.01).

Use an additional code, if applicable, to identify specific complication.

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 769 (Postpartum and Post Abortion Diagnoses with O.R. Procedures, relative weight 1.6673) and DRG 776 (Postpartum and Post Abortion Diagnoses without O.R. Procedures, relative weight 0.6721), in MDC 14 (Pregnancy, Childbirth and the Puerperium), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

The Medicare Code Editor treats this as a maternity diagnosis, expected only for patients age 9 through 64.

It is on the CMS list of diagnoses consistent only with female patients (the sex-conflict edit itself was retired in FY2025).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 668.02 (pulmonary complications of anesthesia or other sedation in labor and delivery, delivered, with mention of postpartum complication) and 668.04 (pulmonary complications of anesthesia or other sedation in labor and delivery, postpartum condition or complication).