R55

ICD-10Billable

Syncope and collapse

Official ICD-10-CM descriptor (FY2026)

Syncope and collapse

R55 is valid for submission on a claim: CMS flags it as a billable, specific code.

Inclusion terms

Blackout
Fainting
Vasovagal attack

Excludes1

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

cardiogenic shock (R57.0)
carotid sinus syncope (G90.01)
heat syncope (T67.1)
neurocirculatory asthenia (F45.8)
neurogenic orthostatic hypotension (G90.3)
orthostatic hypotension (I95.1)
postprocedural shock (T81.1-)
psychogenic syncope (F48.8)
shock NOS (R57.9)
shock complicating or following abortion or ectopic or molar pregnancy (O00-O07, O08.3)
shock complicating or following labor and delivery (O75.1)
Stokes-Adams attack (I45.9)
unconsciousness NOS (R40.2-)

Where this code sits

Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: General symptoms and signs (R50-R69)

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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.