O99.51 Diseases of the respiratory system complicating pregnancy

The ICD-10-CM code for Diseases of the respiratory system complicating pregnancy is O99.51 (FY2026). It is a non-billable category code — select a more specific code below for claims.

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

Also Known As

ICD-10-CM Alphabetic Index entries that lead to O99.51:

• Pregnancy (single) (uterine) › complicated by (care of) (management affected by) › pneumonia
• Pregnancy (single) (uterine) › complicated by (care of) (management affected by) › upper respiratory infection
• Pregnancy (single) (uterine) › complicated by (care of) (management affected by) › respiratory condition (conditions in J00-J99)

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool

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O99.51 — Diseases of the respiratory system complicating pregnancy. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/O99.51

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