99214 vs 99215
The two most common established-patient office E/M levels; 99214 represents moderate complexity and 99215 high complexity.
1 min read · Last reviewed May 23, 2026
At a glance
- Category
- Coding
- Primary sources
- 2
- Workspace handoff
- revenue audit →
Where this comes up
Coders meet this term inside the chart at the moment of code selection — picking the E/M level, attaching the right modifier, defending the procedure code against an NCCI edit, or answering an auditor who pulled the encounter for a payer-initiated review.
Full definition
What it is in practice
By MDM, 99214 requires at least two moderate-complexity elements (problems / data / risk) and 99215 requires at least two high-complexity. By time, 99214 = 30-39 minutes; 99215 = 40-54 minutes. Reference: CMS E/M Services Guide.
How it shows up in your practice
The MDM jump from 99214 to 99215 usually requires high-risk decision-making — e.g., decision regarding hospitalization, drug therapy requiring intensive monitoring. Most chronic-disease visits are 99214; reserve 99215 for situations the documentation can support.
Sources
- CMS — Evaluation and Management (E/M) Services Guidehttps://www.cms.gov/outreach-and-education/medicare-learning-network-mln/mlnproducts/downloads/eval-mgmt-serv-guide-icn006764.pdf
- AMA — 2021 / 2023 E/M Documentation Guidelineshttps://www.ama-assn.org/practice-management/cpt/cpt-evaluation-and-management
Audit your 99214/99215 distribution in Revenue Audit
Open revenue audit →Related terms
- CodingMedical Decision Making (MDM)One of two methods (with time) for selecting an E/M level, based on the number and complexity of problems, the amount and complexity of data reviewed, and the risk of complications.
- CodingTime-Based BillingMethod for selecting an E/M level using the total time spent on the date of the encounter.
- CodingE/M CodingEvaluation and Management codes (99202-99499) used to bill office, hospital, and other professional visits.
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Related across the archive
- GlossaryE/M CodingEvaluation and Management codes (99202-99499) used to bill office, hospital, and other professional visits.
- GlossaryMedical Decision Making (MDM)One of two methods (with time) for selecting an E/M level, based on the number and complexity of problems, the amount and complexity of data reviewed, and the risk of complications.
- GlossaryTime-Based BillingMethod for selecting an E/M level using the total time spent on the date of the encounter.
- GlossaryProlonged ServicesAdd-on codes used when a visit exceeds the time thresholds of the highest base E/M code.
- Billing99214 vs 99215: When to Bill Each CodeLearn the difference between 99214 and 99215: when each applies, what documentation you need, and the $40/visit revenue impact.
- RegulationMLN: 2021 E/M Office Visit Coding RevisionsReference to the 2021 CPT E/M office visit (99202-99215) code revisions: history and exam no longer used for code selection; medical decision making or time controls.
- GlossaryCPT (Current Procedural Terminology)The AMA-maintained code set that describes medical, surgical, and diagnostic services for billing.
- GlossaryCritical Care (99291-99292)CPT codes for evaluation and management of a critically ill or critically injured patient, time-based.
This glossary entry is a research aid for billing and compliance staff. It does not provide legal, medical, or financial advice and does not replace counsel. References cited link to primary sources at HHS, OCR, CMS, eCFR, NIST, and the relevant payer or industry body.