Medical billing is a complex, detail-driven process – and getting it wrong costs practices real revenue. Among the many CPT codes used every day, CPT code 99213 is one of the most frequently billed, making it one of the most important to fully understand. Many healthcare organisations use advanced Healthcare Software Development Solutions to streamline CPT coding processes and minimize reimbursement errors.
Without a clear grasp of this code, billing errors are common – leading to payment delays or outright claim denials. In this guide, we break down exactly what CPT code 99213 is, when to use it, and how to bill it correctly under the current 2021+ Evaluation and Management (E/M) guidelines. Whether you’re new to medical billing or need a refresher, this guide will walk you through everything you need to know.
Last updated: July 2026 ·
What are CPT Codes?
CPT stands for Current Procedural Terminology – a standardized coding system maintained by the American Medical Association (AMA) that healthcare providers use to describe medical, surgical, and diagnostic services. Healthcare providers use these codes to describe medical services and procedures. The American Medical Association oversees the CPT codes to make sure the medical fraternity uses the exact wording. It generalizes what doctors do to ensure that everyone, from doctors and insurance companies to the patient, knows what the services are. For instance, if a doctor gives someone a routine checkup, they will forward their bill to the patient using a specific CPT code for that visit. CPT codes are very important to accurate billing and payment. If they didn’t exist, it would be confusing sometimes and would take more time to be paid. Understanding CPT codes makes our work get the billing process simple.
Why are CPT Codes Important?
Standardized coding matters across the healthcare ecosystem – from everyday billing to specialized services like those offered by a Telemedicine app development company, which also rely on CPT codes to ensure clear, consistent communication between providers, patients, and payers. Proper coding allows providers to be reimbursed correctly for the services they deliver, and CPT data also feeds into broader healthcare research and policy-making, since it forms the basis for tracking what services are being provided across the industry.
Types of CPT Codes
There are three types of CPT codes.
- Category I: CPT codes are utilized in procedures or services that are performed often.
- Category II: Supplementary tracking codes, which help for performance management.
- Category III: Emerging technology, services, and procedure codes.
E/M Codes Overview
Physician-patient encounter services fall under the scope of group Evaluation and Management Services. Code 99213 is an example of this type of code. The “CPT” code is merely a short term for the Current Procedural Terminology code. CPT codes describe procedures, both surgical and non-invasive. E/M services classifications take into account variables like the difficulty in dealing with a patient’s problem, history obtained, examination, and decision-making.
Moreover, evaluation and management codes promote uniformity in billing across all healthcare settings. Such a process ensures that healthcare providers are paid for their time and expertise resources during each encounter with the patient. With the use of E/M codes, healthcare providers can ensure consistency and avoid errors when developing a billing process, which would favour both the providers and the patients.
Levels of E/M Codes
E/M codes for established patients (office/outpatient visits) range from 99211 to 99215. Since January 1, 2021, each level is defined by either the Medical Decision Making (MDM) complexity or the total time spent on the date of the encounter – not by history or exam documentation.
| Code | MDM Level | Time Range |
|---|---|---|
| 99211 | Minimal (no physician MDM required) | N/A |
| 99212 | Straightforward | 10–19 minutes |
| 99213 | Low | 20–29 minutes |
| 99214 | Moderate | 30–39 minutes |
| 99215 | High | 40–54 minutes |
When to Use CPT Code 99213
1. Appropriate Situations
CPT code 99213 is appropriate when the patient has a visit that includes:
- Minor to Moderately Serious Problems: Stable or improving stable needs to be followed.
- Chronic Condition Follow-ups: Follow-ups for conditions such as hypertension, diabetes, or asthma.
- Medication Management: Titration of doses or side effects of medications.
- Reviewing Test Results: Follow-up on lab tests or imaging that need interpretation.
- Addressing New Symptoms: Minimal new symptoms that may not necessitate significant workup.
2. Examples of Visits
- Hypertension Management: A patient whose blood pressure is controlled comes in for a follow-up
- Diabetes Follow-up: A patient whose blood glucose is being monitored comes in with their blood glucose logs and discusses them with the physician. The physician adjusts their insulin based on the results.
- Asthma Monitoring: A patient with asthma reports an occasional wheeze, and the physician checks her inhaler technique.
- Medication Side Effects: If a patient develops minimal side effects from a new medication, the physician adjusts the medication.
3. Inappropriate Use
Do not use CPT Medical code 99213 for:
- Minimum Visits: Use 99211 instead.
- Complex Visits: If the visit involves critical examination and significant complexity decision-making, use 99214 or 99215.
- New Patients: For new patients, use codes 99201-99205.
Note: A patient is considered “established” if they have received professional services from the same provider – or another provider of the same specialty within the same group – within the past three years.
CPT Code 99213 Reimbursement Rate (2026)
Reimbursement for CPT 99213 is based on Relative Value Units (RVUs) – covering physician work, practice expense, and malpractice – multiplied by CMS’s annual conversion factor and adjusted for your geographic location.
| Setting | Approx. National Medicare Rate (2026) |
|---|---|
| Non-Facility (Office) | ~$95 |
| Facility (Hospital Outpatient) | ~$57 |
These are national averages. Your actual reimbursement will vary based on your Geographic Practice Cost Index (GPCI) locality and, for commercial payers, your specific contract terms. Use the CMS Physician Fee Schedule Lookup Tool for exact, locality-adjusted rates.
99213 vs 99212 vs 99214: Which Code Should You Use?
| 99212 | 99213 | 99214 | |
|---|---|---|---|
| MDM Level | Straightforward | Low | Moderate |
| Time Range | 10–19 minutes | 20–29 minutes | 30–39 minutes |
| Typical Scenario | Minor, single self-limited problem | Stable chronic condition follow-up | New problem or worsening chronic condition |
How to Qualify for CPT Code 99213 (2021 Guideline Update)
Since January 1, 2021, CPT code 99213 is selected using one of two independent pathways. You only need to satisfy ONE of them – not both.
Path 1: Low-Complexity Medical Decision Making (MDM)
To qualify on the MDM pathway, the visit must meet the “low complexity” threshold in at least two of these three areas:
- Number and complexity of problems addressed: Typically one stable chronic condition, or two minor/self-limited problems
- Amount and complexity of data reviewed: Limited – for example, reviewing basic lab results
- Risk of complications or management decisions: Low risk to the patient
Example: A patient with well-controlled hypertension returns for a follow-up. The physician reviews home blood pressure logs and adjusts the medication dosage slightly. This is one stable chronic condition, minimal data, and low risk – qualifying for 99213 on the MDM pathway.
Path 2: Total Time – 20 to 29 Minutes
Alternatively, 99213 is supported when the physician or qualified healthcare professional spends 20–29 minutes of total time on the date of the encounter. This includes both face-to-face time (exam, counseling) and non-face-to-face time (chart review, documentation, care coordination) performed on that same calendar day – regardless of how much of that time was spent counseling the patient.
Why History and Exam No Longer Determine the Code Level
Before 2021, coders had to document a specific level of patient history and physical exam (“two of three” components) to justify a code level. The AMA eliminated this requirement for office/outpatient E/M codes (99202–99215) to reduce documentation burden. History and exam should still be documented as medically appropriate to the visit – but they no longer determine which E/M code you bill.
CPT 99213 Billing Guidance
Accurate billing ensures that healthcare practitioners adhere to the standard requirements, thus availing the proper reimbursement. Some of the key billing guidance are as follows:
Documentation Requirements
It is essential that the level of service billed matches your documentation. CPT code 99213 should be supported by either the MDM pathway or the total time pathway – you do not need to meet both, but your notes should clearly show which pathway you’re using. Providers should document history and examination as medically appropriate, along with a clear statement of MDM factors or total time spent. Many healthcare organisations implement advanced EHR software, EMR software, and scalable EHR solutions to improve documentation accuracy, streamline CPT coding workflows, and ensure better coding compliance.
Modifiers
Modifiers are two-digit codes added to a CPT code to give additional detail. Modifier 25 is used for a significant, separate E/M service performed on the same day as another procedure. For example, adding Modifier 25 would be necessary if a patient visits for wart removal but also needs blood pressure management. Modifier 59 identifies services as distinct and separate when performed on the same day.
Avoiding Common Pitfalls
Upcoding, or billing for a higher level of service than performed, is fraudulent and punishable. Undercoding can lead to revenue loss and missed opportunities. Cloning documentation or copying details from prior visits without updates may result in inaccurate records. Accurate documentation improves patient care and ensures proper billing.
Time-Based Coding
Since the 2021 E/M guideline update, total time – not just counseling time – can independently support CPT code 99213. If total time on the date of the encounter (exam, counseling, chart review, care coordination, and documentation combined) falls between 20 and 29 minutes, 99213 is supported regardless of how that time was spent. For example, a visit with 10 minutes of exam time, 5 minutes of chart review, and 8 minutes of counseling adds up to 23 minutes total – which qualifies for 99213 on the time pathway.
Medical Necessity
Medical necessity is key in selecting the proper level of service. The care provided must be reasonable and necessary for the diagnosis or treatment of the patient’s condition. Even for higher levels of service, adequate documentation of necessity is required. Avoid providing or billing for medical services that are not justified by the patient’s condition.
Practice Tips in Accurate Documentation
Proper documentation is vital for accurate billing and better patient care. Clearly record the chief complaint, relevant findings, and diagnoses in a specific and descriptive manner. Include treatments, patient education, and both positive and negative examination results. Use clear, plain language to ensure readability for all.
Timeliness
Documentation should be completed promptly after the encounter to maintain accuracy. Regularly update patient records to reflect current information, including medications and allergies. Timely documentation ensures comprehensive care and reduces the risk of errors in billing and treatment records.
Staying Current on Changes
Healthcare laws and CPT codes change frequently, requiring professionals to stay updated. Use resources like the American Medical Association (AMA), Centers for Medicare & Medicaid Services (CMS), and professional associations for the latest information. Attend workshops, webinars, and courses to remain informed about billing and coding standards.
Keeping Current
Regular training ensures billing staff stays informed about updates in coding guidelines. Review internal policies periodically to align them with industry standards. Ensure that electronic health record (EHR) systems are updated with the latest coding features to streamline documentation and billing processes.
Knowledge of Compliance and Audits
Maintaining coding compliance helps avoid losses and withstand audits. Regularly train staff on compliance requirements and audit protocols. Proper documentation and adherence to current guidelines reduce risks and improve the reliability of the billing process, ensuring accuracy and regulatory compliance.
Need for Compliance
Legal Protection: This is because of the law and the reduction in the risk due to the law.
Financial Integrity: Correct reimbursement without fines being imposed.
Reputation Management: A maintained relationship with the trust of patients and payers.
Documentation Audit: Fields to be analyzed regularly to update the codes for the records.
Internal Controls: Put controls and checks in billing.
External Audits: Any external audits that prove ways of improvement.
Technology and CPT Code 99213
Technology can help with accurate coding and documentation with medical billing code 99213.
Electronic Health Records (EHR)
- Templates: Utilize templates specific to EHR and CPT code 99213; therefore, all elements are met.
- Alerts: Set up to alert missing documentation components.
- Efficiency: Such a process streamlines the time lost on documentation.
Coding Software
- Support: Provides suggestions for applicable codes based on documentation.
- Updates: Includes any new coding updates automatically.
- Error Reduction: Helps minimize the chances of coding mistakes through internal checks.
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How Dreamsoft4u Supports Compliant CPT 99213 Coding
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Key Takeaways
- Since 2021, CPT code 99213 is billed using either low-complexity MDM OR 20–29 minutes of total time — not history and exam documentation.
- 99213 is only for established patients with stable chronic conditions or minor problems; use 99202–99205 for new patients.
- 2026 national Medicare reimbursement is approximately $95 (non-facility) and $57 (facility), varying by location and payer.
Want a second opinion on your 99213 coding accuracy? Get a free E/M billing audit from Dreamsoft4u.
Conclusion
Understanding CPT code 99213 is essential to accurate medical billing and proper reimbursement. Knowing when and how to apply it – using the current MDM-or-time framework – helps ensure clean claims, timely payments, and less audit risk. Keep your documentation precise, stay current on annual coding and reimbursement updates, and use technology to support accuracy wherever possible.
Frequently Asked Questions
Yes. CPT code 99213 can be billed for an established-patient telehealth visit when the encounter meets the standard MDM or time requirements. Append the appropriate telehealth modifier (e.g., 95) and confirm payer-specific telehealth policies before submitting.
Yes. If the E/M service is significant and separately identifiable from the procedure performed on the same day, you can bill both – append Modifier 25 to the E/M code.
Since 2021, total time (20–29 minutes) is one of two independent pathways for billing 99213 – it no longer requires counseling to be more than 50% of the visit. You can use either the time pathway or the MDM pathway, whichever your documentation best supports.
No. CPT code 99213 is only for established patients. Use codes 99201-99205 for new patient visits.
Note the total visit time, counselling time, and a summary of the general topics of counselling.
Approximately $95 in a non-facility (office) setting and roughly $57 in a facility setting, nationally – before geographic (GPCI) adjustment.
99214 requires moderate-complexity MDM or 30–39 minutes of total time – one level above 99213, typically for a new problem or a worsening chronic condition.
Yes, as medically appropriate – but since 2021, history and exam no longer determine which code level you bill. Only MDM or total time do.
All face-to-face and non-face-to-face time spent by the provider on the date of the encounter – including chart review, exam, counseling, and documentation.
Upcoding means billing a higher-level code than the visit actually supports. It’s considered fraudulent and can trigger audits, penalties, and revenue clawbacks.
