ICD-10-CM 2027
ICD-10 code for asphyxia
From the official ICD-10-CM alphabetic index entry “Asphyxia, asphyxiation (by)”. Page updated September 29, 2026.
About coding asphyxia
The ICD-10-CM code for asphyxia is R09.01 (Asphyxia). The official index lists 53 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R09.01.
Within R09.0 (asphyxia and hypoxemia), R09.01 is specifically for asphyxia. Related codes cover hypoxemia (R09.02).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 205 (Other Respiratory System Diagnoses with MCC, relative weight 1.8244) and DRG 206 (Other Respiratory System Diagnoses without MCC, relative weight 0.9257), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific asphyxia codes (official index)
- antenatal P84 — Other problems with newborn
- birth P84 — Other problems with newborn
- bunny bag
- crushing S28.0 — Crushed chest
- drowning T75.1 — Unspecified effects of drowning and nonfatal submersion
- gas, fumes, or vapor
- inhalation
- intrauterine P84 — Other problems with newborn
- local I73.00 — Raynaud's syndrome without gangrene
- with gangrene I73.01 — Raynaud's syndrome with gangrene
- mucus
- newborn P84 — Other problems with newborn
- pathological R09.01 — Asphyxia
- postnatal P84 — Other problems with newborn
- mechanical
- prenatal P84 — Other problems with newborn
- reticularis R23.1 — Pallor
- strangulation
- submersion T75.1 — Unspecified effects of drowning and nonfatal submersion
- traumatic T71.9 — Asphyxiation due to unspecified cause
- due to
- crushed chest S28.0 — Crushed chest
- foreign body (in)
- low oxygen content of ambient air T71.20 — Asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air due to unspecified cause
- due to
- being trapped in
- low oxygen environment T71.29 — Asphyxiation due to being trapped in other low oxygen environment
- in car trunk T71.221 — Asphyxiation due to being trapped in a car trunk, accidental
- circumstances undetermined T71.224 — Asphyxiation due to being trapped in a car trunk, undetermined
- done with intent to harm by
- another person T71.223 — Asphyxiation due to being trapped in a car trunk, assault
- self T71.222 — Asphyxiation due to being trapped in a car trunk, intentional self-harm
- in refrigerator T71.231 — Asphyxiation due to being trapped in a (discarded) refrigerator, accidental
- circumstances undetermined T71.234 — Asphyxiation due to being trapped in a (discarded) refrigerator, undetermined
- done with intent to harm by
- another person T71.233 — Asphyxiation due to being trapped in a (discarded) refrigerator, assault
- self T71.232 — Asphyxiation due to being trapped in a (discarded) refrigerator, intentional self-harm
- cave-in T71.21 — Asphyxiation due to cave-in or falling earth
- mechanical threat to breathing (accidental) T71.191 — Asphyxiation due to mechanical threat to breathing due to other causes, accidental
- circumstances undetermined T71.194 — Asphyxiation due to mechanical threat to breathing due to other causes, undetermined
- done with intent to harm by
- another person T71.193 — Asphyxiation due to mechanical threat to breathing due to other causes, assault
- self T71.192 — Asphyxiation due to mechanical threat to breathing due to other causes, intentional self-harm
- hanging T71.161 — Asphyxiation due to hanging, accidental
- circumstances undetermined T71.164 — Asphyxiation due to hanging, undetermined
- done with intent to harm by
- another person T71.163 — Asphyxiation due to hanging, assault
- self T71.162 — Asphyxiation due to hanging, intentional self-harm
- plastic bag T71.121 — Asphyxiation due to plastic bag, accidental
- circumstances undetermined T71.124 — Asphyxiation due to plastic bag, undetermined
- done with intent to harm by
- another person T71.123 — Asphyxiation due to plastic bag, assault
- self T71.122 — Asphyxiation due to plastic bag, intentional self-harm
- smothering
- in furniture T71.151 — Asphyxiation due to smothering in furniture, accidental
- circumstances undetermined T71.154 — Asphyxiation due to smothering in furniture, undetermined
- done with intent to harm by
- another person T71.153 — Asphyxiation due to smothering in furniture, assault
- self T71.152 — Asphyxiation due to smothering in furniture, intentional self-harm
- under
- another person's body T71.141 — Asphyxiation due to smothering under another person's body (in bed), accidental
- circumstances undetermined T71.144 — Asphyxiation due to smothering under another person's body (in bed), undetermined
- done with intent to harm T71.143 — Asphyxiation due to smothering under another person's body (in bed), assault
- pillow T71.111 — Asphyxiation due to smothering under pillow, accidental
- circumstances undetermined T71.114 — Asphyxiation due to smothering under pillow, undetermined
- done with intent to harm by
- another person T71.113 — Asphyxiation due to smothering under pillow, assault
- self T71.112 — Asphyxiation due to smothering under pillow, intentional self-harm
- trapped in bed clothes T71.131 — Asphyxiation due to being trapped in bed linens, accidental
- circumstances undetermined T71.134 — Asphyxiation due to being trapped in bed linens, undetermined
- done with intent to harm by
- another person T71.133 — Asphyxiation due to being trapped in bed linens, assault
- self T71.132 — Asphyxiation due to being trapped in bed linens, intentional self-harm
- vomiting, vomitus
Common questions about asphyxia ICD-10 codes
What is the ICD-10 code for asphyxia?
- R09.01 — Asphyxia. More specific codes apply when the documentation supports them: P84, P84, S28.0, T75.1 and others below.
What is the ICD-10 code for antenatal asphyxia?
- P84 — Other problems with newborn.
What is the ICD-10 code for birth asphyxia?
- P84 — Other problems with newborn.
What is the ICD-10 code for crushing asphyxia?
- S28.0 — Crushed chest (header code; choose a more specific subcode).
What is the ICD-10 code for drowning asphyxia?
- T75.1 — Unspecified effects of drowning and nonfatal submersion (header code; choose a more specific subcode).
What is the ICD-10 code for intrauterine asphyxia?
- P84 — Other problems with newborn.
What is the ICD-10 code for local asphyxia?
- I73.00 — Raynaud's syndrome without gangrene.
Is R09.01 billable?
- Yes. R09.01 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R09.01 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R09.01 as a principal diagnosis.
Is R09.01 a CC or MCC?
- R09.01 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.