ICD-10 G90.01
Billable / SpecificCarotid sinus syncope
About ICD-10-CM G90.01
ICD-10-CM code G90.01 represents Carotid sinus syncope. This is a billable/specific code in the Nervous System chapter (block G90). The 2026 edition of ICD-10-CM G90.01 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under G90.01. Per CMS ICD-10-CM Tabular 2026.
- Carotid sinus syndrome
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Medicare LCD Coverage for G90.01
Local Coverage Determinations (LCDs) from CMS MACs that list G90.01 as a covered diagnosis.
Showing top 10 of 342 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G90.01.
1 Aetna
2 Cigna
5 Medicare
CPT Codes Commonly Billed with G90.01
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 33208 CMS LCD: Billing and Coding: Single Chamber and Dual Chamber Permanent Cardiac Pacemakers � Coding and Billing CMS LCD
- 33206 CMS LCD: Billing and Coding: Single Chamber and Dual Chamber Permanent Cardiac Pacemakers � Coding and Billing CMS LCD
- 33207 CMS LCD: Billing and Coding: Single Chamber and Dual Chamber Permanent Cardiac Pacemakers � Coding and Billing CMS LCD
- 93243 CMS LCD: Billing and Coding: Ambulatory Electrocardiograph (AECG) Monitoring CMS LCD
- 93242 CMS LCD: Billing and Coding: Ambulatory Electrocardiograph (AECG) Monitoring CMS LCD
- 93245 CMS LCD: Billing and Coding: Ambulatory Electrocardiograph (AECG) Monitoring CMS LCD
- 93270 CMS LCD: Billing and Coding: Ambulatory Electrocardiograph (AECG) Monitoring CMS LCD
- 0940T CMS LCD: Billing and Coding: Ambulatory Electrocardiograph (AECG) Monitoring CMS LCD
- 93298 CMS LCD: Billing and Coding: Ambulatory Electrocardiograph (AECG) Monitoring CMS LCD
- 93247 CMS LCD: Billing and Coding: Ambulatory Electrocardiograph (AECG) Monitoring CMS LCD
Convert G90.01 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| G90.01 | 33701 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G90.01
Other codes in section G89-G99 (Other disorders of the nervous system).
ICD-10 G90.01, Billing FAQ
Is ICD-10 code G90.01 billable? +
Yes, G90.01 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to G90.01? +
ICD-10 G90.01 includes: Carotid sinus syndrome.
What CPT codes are commonly billed with G90.01? +
Procedures frequently paired with G90.01 include: 33208, 33206, 33207, 93243, 93242.
What ICD-9 codes does G90.01 map to? +
Per CMS GEMs, G90.01 maps to ICD-9 codes: 33701. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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