What is the ICD-10-CM code for dizziness or syncope?

The primary ICD-10-CM code for dizziness or syncope is R55 (Syncope and collapse). There are 13 billable dizziness or syncope codes in FY2027, covering different types and underlying causes.

How many ICD-10-CM codes are there for dizziness or syncope?

There are 13 ICD-10-CM codes for dizziness or syncope in the FY2027 tabular list, of which 13 are billable. These codes fall under Chapter 18 of the ICD-10-CM classification.

Which chapter covers dizziness or syncope in ICD-10-CM?

Dizziness and Syncope codes are classified in Chapter 18 of the ICD-10-CM tabular list: R00–R99 (Symptoms, Signs and Abnormal Clinical and Laboratory Findings).

Dizziness and Syncope ICD-10-CM codes

ICD-10-CM codes for dizziness and giddiness (R42) and syncope and collapse (R55), with the vestibular, cardiovascular, and autonomic diagnoses that replace them once a cause is known.

13 codes, 13 billable. FY2027, valid from October 1, 2026. In chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings.

How to code Dizziness and Syncope

R42 is a single code for dizziness, giddiness, and lightheadedness, and for vertigo when the provider does not identify a vestibular cause. R55 is a single code for syncope and collapse, which includes fainting, blackout, vasovagal attack, and near-syncope or presyncope. Neither code has additional characters.

Once the cause is documented, code it and drop the symptom. True vertigo with a vestibular diagnosis goes to H81: benign paroxysmal positional vertigo is H81.1- with laterality (H81.10 unspecified ear, H81.11 right, H81.13 bilateral). Syncope from orthostatic hypotension is I95.1, from bradycardia R00.1 or the specific arrhythmia, from carotid sinus hypersensitivity G90.01, from postural orthostatic tachycardia syndrome G90.A, from coughing R05.4, and from heat T67.1XXA. Hypotension without a stated type is I95.9.

A transient alteration of awareness without a loss of consciousness is R40.4. Syncope with a witnessed seizure is coded to the seizure diagnosis. When the workup is complete and no cause is found, R55 or R42 remains the final code. Add external cause and place codes when a fall or injury resulted from the syncope, and code the injury first when it is the reason for the encounter.

All Dizziness and Syncope codes

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