In simple words: This code indicates problems related to tobacco use during or after pregnancy.

This code is used to describe a tobacco use disorder affecting a patient during pregnancy, childbirth, or the puerperium period.A secondary code from category F17 should be used to specify the type of tobacco or nicotine dependence.

Example 1: A pregnant woman in her second trimester is diagnosed with tobacco use disorder.The physician documents she smokes cigarettes.The codes O99.332 and F17.20 (Nicotine dependence, unspecified) are applied., A woman presents for a postpartum checkup and admits to using chewing tobacco during pregnancy.This is coded as O99.335 and F17.3 (Other tobacco dependence)., A woman with tobacco use disorder is seen during labor and delivery. She reports chewing tobacco use.This scenario is coded as O99.334 and F17.3.

Documentation must specify the type of tobacco product used (cigarettes, chewing tobacco, etc.), the trimester or period of pregnancy/puerperium affected, and the presence of nicotine dependence and any related disorders. Cessation counseling should be documented if provided.

** For cases where the patient is receiving counseling specifically for tobacco cessation, code Z71.6 should also be considered alongside F17.2 to identify the type of nicotine dependence.