- R55 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM R55 became effective on October 1, 2022.
- This is the American ICD-10-CM version of R55 – other international versions of ICD-10 R55 may differ.
ICD-10-CM R55 is grouped within Diagnostic Related Group(s):
- 312 Syncope and collapse
Applicable To
- Blackout
- Fainting
- Vasovagal attack
Type 1 Excludes
- 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-)
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to R55:
- vagal > Arrhythmia (auricle)(cardiac)(juvenile)(nodal)(reflex)(supraventricular)(transitory)(ventricle) I49.9
- drop NEC > Attack, attacks
- syncope > Attack, attacks
- unconsciousness > Attack, attacks
- vasomotor > Attack, attacks
- vasovagal (paroxysmal) (idiopathic) > Attack, attacks
- general > Collapse R55
- attack NEC > Drop (in)
- fainting > Fit R56.9
- syndrome (vasovagal attack) > Gower\’s
- vasomotor > Instability
- consciousness, transient > Loss (of)
- vasomotor > Phenomenon
- vasovagal > Phenomenon
- vasovagal > Reflex R29.2
- cardiac > Syncope (near) (pre-) R55
- heart > Syncope (near) (pre-) R55
- vasoconstriction > Syncope (near) (pre-) R55
- vasodepressor > Syncope (near) (pre-) R55
- vasomotor > Syncope (near) (pre-) R55
- vasovagal > Syncope (near) (pre-) R55
- Gower\’s > Syndrome
- vasovagal > Syndrome