What does ICD-10-CM code R42 mean?
R42 represents Dizziness and giddiness. As a symptom code from Chapter 18 (Symptoms, Signs and Abnormal Clinical Findings), this code should be used when no definitive diagnosis has been established for the underlying condition. Coders frequently reference this code as dizziness icd 10, icd 10 code for dizziness, dizziness and giddiness icd 10, or dizziness.
Code category and hierarchy
- Chapter: 18 – Symptoms, Signs and Abnormal Clinical Findings (R00-R99)
- Category: R42
- Code: R42 – Dizziness and giddiness
Guideline notes and coding considerations
Important Guideline Note
Assign R42 only when documentation clearly supports this diagnosis. Review the excludes notes and ensure no conflicts with other assigned codes.
- Specificity: Assign R42 only when documentation supports this specific diagnosis.
Learn the underlying rules in the ICD-10 Coding Guidelines, Symptom Code Guidelines.
Documentation tips (what coders should confirm)
- Verify the clinical documentation supports the use of R42
Validate R42 Against ICD 10 CM Coding Guidelines
Check this code against official guidelines for conflicts and compliance issues.
Related ICD-10 codes
Frequently Asked Questions
The ICD-10-CM code for dizziness is R42, which represents dizziness and giddiness. This code is also commonly referenced as icd 10 code for dizziness, dizziness and giddiness icd 10, dizziness. Verify this code using the ICD Code Auditor to ensure guideline compliance.
Yes. R42 is an active ICD-10-CM diagnosis code used to classify dizziness and giddiness for clinical documentation, reporting, and medical billing purposes.
Use the ICD Code Auditor to check R42 against official ICD-10-CM coding guidelines. The tool validates by fiscal year and patient gender to identify potential conflicts.
Yes, R42 can be the primary diagnosis in outpatient settings when no definitive diagnosis has been established. However, in inpatient settings, symptom codes should not be the principal diagnosis if the underlying condition has been identified. Per ICD-10-CM guidelines Section IV.D, codes for symptoms are acceptable as principal diagnosis when a definitive condition has not been established.
Documentation should clearly describe the clinical condition represented by R42 (Dizziness and giddiness). Include relevant clinical findings, diagnostic test results, provider assessment, and the treatment plan. The diagnosis must be supported by the medical record and not based solely on lab results without clinical interpretation.
Sources
Reviewed by: Certified ICD-10 Coding & Risk Adjustment Specialist
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