R55: Syncope and collapse – 2025 ICD-10-CM Codes

R55 is a billable/specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Syncope and collapse.

Inclusion term

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-)