O99.334
Billable codeSmoking (tobacco) complicating childbirth
The ICD-10 code for smoking (tobacco) complicating childbirth is O99.334.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- 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
- O99.335Smoking (tobacco) complicating the puerperium
- O99.334Smoking (tobacco) complicating childbirth
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 64901Approximate match
Associated MS-DRGs
O99.334 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.