99423 Ol dig e/m service 21+ minutes
Also known as: online E/M comprehensive, digital visit 21+ min, telemedicine comprehensive
Online digital evaluation and management service, for an established patient, for up to 7 days of communication in a 7-day period; 21 or more minutes of clinical staff time with supervising physician review.
In Plain Language
Comprehensive online doctor visit; Extensive digital health consultation
Clinical Context
Used for asynchronous online digital evaluation and management of established patients involving 21 or more minutes of clinical staff time with supervising physician review.
RVU Breakdown
| Work RVU | 0.80 |
| Total RVU | 0.80 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
E&M codes require documentation of medical decision-making (MDM) complexity or total time spent on the encounter. For 2026, time-based coding includes all physician time on the date of the encounter.
How This Code Compares
With a work RVU of 0.80, this code ranks in the 18th percentile among Evaluation & Management codes — 1.9x below the median (1.54). The highest wRVU in this category is 18.46.
Specialties
Frequently Asked Questions
What is CPT code 99423?
CPT 99423 (Ol dig e/m service 21+ minutes) is a Evaluation & Management code. Online digital evaluation and management service, for an established patient, for up to 7 days of communication in a 7-day period; 21 or more minutes of clinical staff time with supervising physician review.
Who uses CPT code 99423?
CPT 99423 is used by All Specialties. Used for asynchronous online digital evaluation and management of established patients involving 21 or more minutes of clinical staff time with supervising physician review.
When is CPT 99423 used?
Used for asynchronous online digital evaluation and management of established patients involving 21 or more minutes of clinical staff time with supervising physician review.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.