O99.5Header code — not billable

Diseases of the respiratory system complicating pregnancy, childbirth and the puerperium

Short description: Diseases of the respiratory system compl preg/chldbrth

Chapter
15. Pregnancy, childbirth and the puerperium
Category
O99
Effective date
October 1, 2026

Related codes in category O99

Frequently asked questions

What is ICD-10 code O99.5?

O99.5 is an ICD-10-CM diagnosis code for Diseases of the respiratory system complicating pregnancy, childbirth and the puerperium.

Is O99.5 a billable code?

No. O99.5 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is O99.5 in?

O99.5 falls under Chapter 15: Pregnancy, childbirth and the puerperium.

When did O99.5 become effective?

O99.5 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to O99.5?

O99.5 belongs to category O99, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.