O99.112 Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, second trimester

The ICD-10-CM code for Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, second trimester is O99.112 (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 3,725 U.S. inpatient stays in 2023 included O99.112 among the documented diagnoses.
• 255 stays listed it as the principal diagnosis.

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)

Cite This Page

Reference O99.112 with the canonical source and edition:

O99.112 — Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, second trimester. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/O99.112

Canonical URL: https://icd10codingpro.com/codes/O99.112