R55 – Syncope and collapse
ICD-10-CM 2027 diagnosis code · General symptoms and signs
ICD-10-CM code
R55
- Code
R55(claims format:R55)- Description
- Syncope and collapse
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
- Block
- R50-R69 General symptoms and signs
Notes for R55
Applicable to:
- Blackout
- Fainting
- Vasovagal attack
Excludes1 (not coded here):
- 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-)
Index terms for R55
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Syncope
- Blackout
- Collapse
- Fainting
- Pre-syncope
- Near-syncope
- Fit, fainting
- Syncope, heart
- Vasovagal attack
- Syncope, cardiac
- Drop, attack NEC
- Collapse, general
- Arrhythmia, vagal
- Syndrome, Gower's
- Reflex, vasovagal
- Gower's, syndrome
- Syncope, vasomotor
- Syncope, vasovagal
- Syndrome, vasovagal
- Phenomenon, vasomotor
- Phenomenon, vasovagal
- Syncope, vasodepressor
- Instability, vasomotor
- Attack, attacks, syncope
- Attack, attacks, drop NEC
Frequently asked questions
What is ICD-10 code R55?
R55 is the ICD-10-CM code for syncope and collapse, in the block R50-R69 (General symptoms and signs).
Is R55 a billable code?
Yes. R55 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.