R09.0

ICD-10Non-billable category

Asphyxia and hypoxemia

Official ICD-10-CM descriptor (FY2026)

Asphyxia and hypoxemia

R09.0 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

asphyxia due to carbon monoxide (T58.-)
asphyxia due to foreign body in respiratory tract (T17.-)
birth (intrauterine) asphyxia (P84)
hyperventilation (R06.4)
traumatic asphyxia (T71.-)

Excludes2

Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.

hypercapnia (R06.89)

ICD-10-CM FY2026 defines 2 codes beneath R09.0. See the ICD-10-CM index for what this site publishes.

Related codes in R09

Where this code sits

Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: Symptoms and signs involving the circulatory and respiratory systems (R00-R09)
Parent code: R09

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.