O99.33

Non-Billable

ChapterO00–O9A

Ranksubcategory

Official Description

Tobacco use disorder complicating pregnancy, childbirth, and the puerperium

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A).

Instructional Notes

Includes

Smoking complicating pregnancy, childbirth, and the puerperium

Use Additional Code

code from category F17 to identify type of tobacco nicotine dependence

General instructions are available for the parent sections:

View CH15 Notes View O99 Notes

Clinical Hierarchy

CH15Pregnancy, childbirth and the puerperium (O00-O9A)

O94-O9AOther obstetric conditions, not elsewhere classified (O94-O9A)

O99Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

O99.3Mental disorders and diseases of the nervous system complicating pregnancy, childbirth and the puerperium

O99.33Tobacco use disorder complicating pregnancy, childbirth, and the puerperium

O99.330Smoking (tobacco) complicating pregnancy, unspecified trimester

O99.331Smoking (tobacco) complicating pregnancy, first trimester

O99.332Smoking (tobacco) complicating pregnancy, second trimester

O99.333Smoking (tobacco) complicating pregnancy, third trimester

O99.334Smoking (tobacco) complicating childbirth

O99.335Smoking (tobacco) complicating the puerperium

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to O99.33:

categoryO99

Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

View context instructions

chapterCH15

Pregnancy, childbirth and the puerperium (O00-O9A)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to O99.33. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

6 raw paths

Pregnancy (single) (uterine)3 unique routes

complicated by (care of) (management affected by)(3 variants)

mental disorders (conditions in F01-F09, F20-F52 and F54-F99)

smoking→O99.33

smoking (tobacco)→O99.33

tobacco use disorder (smoking)→O99.33

Tobacco (nicotine)3 unique routes

use(3 variants)

complicating(3 variants)

childbirth→O99.33

pregnancy→O99.33

puerperium→O99.33

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

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