CPT 99423 Reimbursement Benchmarks & Policy | OpenPayer

Summary & Overview

CPT 99423: Online Digital Evaluation and Management for Established Patients

CPT code 99423 is a key billing code for online digital evaluation and management services, specifically for established patients who require 21 or more minutes of cumulative care over a seven-day period. This code reflects the increasing adoption of telehealth and e-visit platforms, enabling clinicians to deliver care remotely through secure patient portals. The code is recognized by major national payers, including Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare, underscoring its relevance across the healthcare landscape.

This publication provides a comprehensive overview of CPT 99423, including payer coverage, clinical context, and related billing codes. Readers will gain insight into benchmarks for utilization, recent policy updates, and the clinical scenarios where this code is most commonly applied. The analysis also highlights associated ICD-10 diagnoses and related CPT codes, offering a clear understanding of how CPT 99423 fits within broader digital health and outpatient care strategies. As telemedicine continues to expand, understanding the nuances of this code is essential for stakeholders navigating reimbursement and compliance in digital healthcare delivery.

AetnaBlue Cross Blue ShieldCigna HealthMedicareUnitedHealthcareCPT 99423online digital evaluatione-visittelehealthestablished patientoutpatientmedical billingdigital healthpolicy updateclinical context

CPT Code Overview

CPT 99423 represents an online digital evaluation and management service for established patients, delivered over a cumulative period of 21 or more minutes within a 7-day timeframe. This service is typically provided via a patient portal in an office or other outpatient setting, allowing clinicians to assess, manage, and communicate with patients remotely. The code is designed to capture the time and expertise involved in digital interactions, supporting the growing trend of telehealth and e-visit care models.

Clinical & Coding Specifications

Clinical Context

A patient who is already established with a provider initiates an online digital evaluation and management (E&M) service through a secure patient portal. Over a period of up to 7 days, the patient and provider exchange messages regarding a health concern, such as fatigue or a general medical question. The provider reviews the patient's history, assesses symptoms, and provides medical advice or management, with the cumulative time spent totaling 21 minutes or more. This service is typically performed in an office or outpatient setting, but delivered remotely via digital communication.

Coding Specifications

Modifiers:
- Modifier 95: Synchronous Telemedicine Service Rendered via a Real-Time Interactive Audio and Video Telecommunications System. Used when the E&M service is provided through real-time audio and video communication.
- Modifier GT: Via interactive audio and video telecommunication systems. Used to indicate the service was delivered via telemedicine.
Provider Taxonomies:

Taxonomy Code Specialty

National Reimbursement Benchmarks

Medicare's national mean rate for CPT code 99423 is $50.21, while the BUCA (average commercial) mean rate is higher at $58.20. Commercial payers such as Cigna and UnitedHealth Group report the highest mean rates nationally, at $71.21 and $72.68 respectively, compared to both Medicare and BUCA.

Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies significantly across payers. Medicare exhibits the tightest range ($3.00), indicating minimal variation in rates. In contrast, UnitedHealth Group and Cigna show the widest dispersions ($39.00 and $36.00 respectively), reflecting greater variability in commercial reimbursement. Aetna and Blue Cross Blue Shield have moderate ranges, while BUCA's dispersion is $26.92.

The table and chart below present a detailed breakdown of national mean rates and percentile values for each payer.

State Benchmarks

State: Alaska1 / 50

Alaska Benchmarks

Alaska demonstrates a notably wide range in reimbursement rates for CPT code 99423, with the largest spread observed in Cigna, where the difference between the 75th and 25th percentiles is $54.71. UnitedHealth Group also shows a substantial spread of $20.83, while Aetna's rates are tightly clustered, with no difference between percentiles. This variability highlights significant differences in how payers compensate providers within the state.

Compared to national averages, Alaska's commercial payers consistently offer higher mean rates, with UnitedHealth Group and Blue Cross Blue Shield standing out for their elevated payments. The table and chart below present the full breakdown of payer-specific reimbursement benchmarks for Alaska.

Key Insights for Alaska

UnitedHealth Group offers the highest mean reimbursement for CPT 99423 in Alaska at $122.20, while Medicare is the lowest at $49.09.
All commercial payers in Alaska reimburse significantly above their respective national averages, with UnitedHealth Group and Blue Cross Blue Shield showing the largest deviations.
The rate spread is widest for Cigna, with a 75th percentile of $112.25 and a 25th percentile of $57.54, indicating substantial variability in provider payments.

CPT 99429: Preventive Medicine Service, Unspecified

CPT-99427-COMPLEX-CHRONIC-CARE-MANAGEMENT-CLINICAL-STAFF-30-MIN

CPT 99427: Clinical Staff Chronic Care Management, Additional 30 Minutes

99422-ONLINE-DIGITAL-EVALUATION-AND-MANAGEMENT-SERVICE-FOR-AN

CPT 99422: Online Digital Evaluation and Management for Established Patients

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

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National Reimbursement Benchmarks

The table and chart below present a detailed breakdown of national mean rates and percentile values for each payer.

National Mean Rates for CPT 99423 by Payer

State Benchmarks

State: Alaska1 / 50

Alaska Benchmarks

Mean CPT 99423 Reimbursement Rates by Payer in Alaska

Key Insights for Alaska

UnitedHealth Group offers the highest mean reimbursement for CPT 99423 in Alaska at $122.20, while Medicare is the lowest at $49.09.
All commercial payers in Alaska reimburse significantly above their respective national averages, with UnitedHealth Group and Blue Cross Blue Shield showing the largest deviations.
The rate spread is widest for Cigna, with a 75th percentile of $112.25 and a 25th percentile of $57.54, indicating substantial variability in provider payments.

CPT 99429: Preventive Medicine Service, Unspecified

CPT-99427-COMPLEX-CHRONIC-CARE-MANAGEMENT-CLINICAL-STAFF-30-MIN

CPT 99427: Clinical Staff Chronic Care Management, Additional 30 Minutes

99422-ONLINE-DIGITAL-EVALUATION-AND-MANAGEMENT-SERVICE-FOR-AN

CPT 99422: Online Digital Evaluation and Management for Established Patients

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Summary & Overview

CPT 99423: Online Digital Evaluation and Management for Established Patients

CPT Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

National Reimbursement Benchmarks

State Benchmarks

Alaska Benchmarks

Key Insights for Alaska

Related Codes

Related Diagnoses

Related CPT Codes

National Reimbursement Benchmarks

State Benchmarks

Alaska Benchmarks

Key Insights for Alaska

Related Codes