O99.335 — Smoking (tobacco) complicating the puerperium
Is O99.335 billable?
Yes — O99.335 is billable for FY2027. O99.335 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. O99.335 may be submitted for encounters from October 1, 2026 through September 30, 2027.
O99.335 at a glance
| Code | O99.335 |
|---|---|
| Description | Smoking (tobacco) complicating the puerperium |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does O99.335 group to?
O99.335 sits in MDC 14 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 769Postpartum and Post Abortion Diagnoses with O.R. Proceduressurgical
How is O99.335 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to O99.335. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Tobacco › use › complicating › puerperium (nicotine)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O99.335 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- supervision of normal pregnancy (Z34.-)
Use additional code — inherited from Chapter 15
Report an additional code alongside O99.335 to fully describe the condition. O99.335 is sequenced first.
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Use additional code — inherited from O99
Report an additional code alongside O99.335 to fully describe the condition. O99.335 is sequenced first.
- code to identify specific condition
Use additional code — inherited from O99.33
Report an additional code alongside O99.335 to fully describe the condition. O99.335 is sequenced first.
- code from category F17 to identify type of tobacco nicotine dependence
Excludes2 — not included here — inherited from Chapter 15
The conditions below are not part of O99.335, but a patient may have both at the same time. When documentation supports it, O99.335 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O99
The conditions below are not part of O99.335, but a patient may have both at the same time. When documentation supports it, O99.335 and the excluded code may both be reported.
- when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)
How long has O99.335 existed?
O99.335 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the O99.33 family? (5)
- 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