Smoking (tobacco) complicating childbirth

This code identifies a maternal condition where tobacco smoking during pregnancy has an adverse effect on the childbirth process. It signifies a direct complication arising from the mother's smoking habit that impacts the delivery.

Apply this code when documentation clearly links maternal tobacco use to a complication occurring during labor and delivery. This includes scenarios where smoking exacerbates existing conditions or directly contributes to adverse outcomes during childbirth. Documentation should specify "smoking complicating childbirth" or similar phrasing.

• Always sequence this code as a secondary diagnosis, following the code for the specific childbirth complication.
• Do not use this code for general maternal tobacco use during pregnancy without a documented complication during childbirth; use codes from category O99.33- for those scenarios.
• Ensure the medical record explicitly states the complication is due to or exacerbated by tobacco smoking during the childbirth encounter.