2026 ICD-10-CM Diagnosis Code R09.2Respiratory arrest
ICD-10-CM Codes›R00–R99›R00-R09›R09
- Billable — Valid for Submission
- Not Chronic
R09.2 is a billable ICD-10-CM diagnosis code for respiratory arrest. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 205 through 206. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. Coders also document this condition as anoxic encephalopathy. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Respiratory failure; insufficiency; arrest.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Anoxic encephalopathy
- Anoxic encephalopathy due to respiratory arrest
- Cardiorespiratory arrest
- Cardiorespiratory failure
- Cardiorespiratory failure during AND/OR resulting from a procedure
- Central nervous system depression
- Respiratory arrest
- Respiratory arrest preceding cardiac arrest
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Cardiorespiratory failure
Type 1 Excludes
- cardiac arrest I46
- respiratory arrest of newborn P28.81
- respiratory distress of newborn P22.0
- respiratory failure J96
- respiratory failure of newborn P28.5
- respiratory insufficiency R06.89
- respiratory insufficiency of newborn P28.5
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- respiratory - R09.2
- cardiorespiratory - See Also: Failure, heart; - R09.2
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Arrest, arrested
- respiratory
- Failure, failed
- cardiorespiratory
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Breathing Problems
When you're short of breath, it's hard or uncomfortable for you to take in the oxygen your body needs. You may feel as if you're not getting enough air. Sometimes you can have mild breathing problems because of a stuffy nose or intense exercise. But shortness of breath can also be a sign of a serious disease.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert R09.2 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About R09.2Overview
Is R09.2 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report respiratory arrest on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does R09.2 group to?
When respiratory arrest is the principal diagnosis on an inpatient stay, it groups to MS-DRG 205, 206, with relative weights from 0.9411 to 1.8310 depending on complications. Higher weights mean higher Medicare reimbursement.
Can R09.2 be a principal diagnosis?
Use it with care. This is a symptom code, so once a definitive diagnosis explaining the respiratory arrest is established, that condition takes the principal position instead.
What is the ICD-9 equivalent of R09.2?
Under the General Equivalence Mappings, respiratory arrest converts to ICD-9-CM 799.1 (respiratory arrest). The mapping is a direct match.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
