ICD-10-CM 2027
ICD-10 code for hypoxia
From the official ICD-10-CM alphabetic index entry “Hypoxia”. Page updated September 29, 2026.
About coding hypoxia
The ICD-10-CM code for hypoxia is R09.02 (Hypoxemia). The official index lists 5 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R09.02.
Within R09.0 (asphyxia and hypoxemia), R09.02 is specifically for hypoxemia. Related codes cover asphyxia (R09.01).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
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 hypoxia codes (official index)
- cerebral, during a procedure NEC G97.81 — Other intraoperative complications of nervous system
- postprocedural NEC G97.82 — Other postprocedural complications and disorders of nervous system
- intrauterine P84 — Other problems with newborn
- myocardial
- newborn P84 — Other problems with newborn
- sleep-related G47.34 — Idiopathic sleep related nonobstructive alveolar hypoventilation
Common questions about hypoxia ICD-10 codes
What is the ICD-10 code for hypoxia?
- R09.02 — Hypoxemia. More specific codes apply when the documentation supports them: G97.81, G97.82, P84, P84 and others below.
What is the ICD-10 code for intrauterine hypoxia?
- P84 — Other problems with newborn.
What is the ICD-10 code for newborn hypoxia?
- P84 — Other problems with newborn.
What is the ICD-10 code for sleep-related hypoxia?
- G47.34 — Idiopathic sleep related nonobstructive alveolar hypoventilation.
Is R09.02 billable?
- Yes. R09.02 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R09.02 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R09.02 as a principal diagnosis.
Is R09.02 a CC or MCC?
- No. R09.02 is neither a CC nor an MCC under MS-DRG v44.0.