O99.843 Bariatric surgery status complicating pregnancy, third trimester

The ICD-10-CM code for Bariatric surgery status complicating pregnancy, third trimester is O99.843 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

15: Pregnancy, childbirth and the puerperium (O00-O9A)

Section

O94-O9A: Other obstetric conditions, not elsewhere classified (O94-O9A)

Category O99

124 codes (96 billable)

FY2026 Status

Stable since FY2024

U.S. Hospital Utilization

• An estimated 1,105 U.S. inpatient stays in 2023 included O99.843 among the documented diagnoses.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

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Reference O99.843 with the canonical source and edition:

O99.843 — Bariatric surgery status complicating pregnancy, third trimester. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/O99.843

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