99204 cpt code is an evaluation and management code for an office or outpatient visit. It applies to a new patient encounter that is moderate in medical decision making. If time is the determining factor of code selection, the service takes 45-59 minutes to complete on the encounter date.
It is important to know more than just the time range of 99204 cpt code. Patient status, medical decision making, documentation, modifiers and payer rules are all things that coders need to consider when coding. Reimbursement also varies by locality, facility status and methodology used for reimbursement by a Medicare or commercial payer.
Quick Answer
CPT 99204 is for a new patient E/M office visit or other outpatient visit. Moderate MDM is required for the service if MDM selects the service. Time-based selection will need 45-59 minutes of total practitioner time.
| Field | CPT 99204 Information |
|---|---|
| CPT code | 99204 |
| Code family | Office or other outpatient E/M |
| Patient type | New patient |
| MDM level | Moderate |
| Time range | 45 to 59 minutes |
| Units | Typically 1 service |
| 2026 work RVU | 2.60 |
| 2026 non-facility total RVUs | 5.31 |
| 2026 facility total RVUs | 3.50 |
| Common setting | Office or outpatient |
| Code selection | MDM or total time |
| Primary use | New patient E/M evaluation |
What is 99204 CPT Code Description?
CPT 99204 is an E/M code for a new patient office visit, or other outpatient visit. It is a moderate medical decision making visit, if MDM determines that is the level. It can also be selected using qualifying total time on the date of service.
The code is part of the office and/or outpatient E/M family. Codes 99202 – 99205 are used for various levels of new patient visits. The level is determined by the complexity of medical decision making or the number of years of qualifying time.
A new definition of patient is relevant here as well. The definition of a new patient is usually when the physician or qualified healthcare professional has not rendered professional services to the patient within the last three years. The status needs to be determined using the exact CPT definition and according to the payer rules.
When Should 99204 cpt code Be Used?
The 99204 cpt code can be used in a new patient visit when moderate level E/M service is supported. Required level shall be established as a result of MDM or qualifying total time in the documentation. The provider assesses 3 elements when using MDM. These consist of issues resolved, data observed or analyzed and risk of patient management.
The MDM level is determined by meeting at least two of the three elements. All three elements do not need to reach the moderate level. For example, a new patient may have multiple chronic conditions requiring prescription management. The provider may also review relevant records and make treatment decisions. Such circumstances may support moderate MDM when properly documented.
What Are the 99204 cpt code MDM Requirements?
When MDM determines the code, the moderate level of medical decision making is required for 99204 cpt code. MDM is assessed based on the problems addressed, data, and risk. Two or more of the following are required to be at the moderate level.
Problems Addressed
The problems element considers the number and complexity of conditions addressed. The documentation should show that these problems were evaluated or managed during the encounter. A condition appearing only in the medical history does not automatically support this element. The provider should address the condition during the service.
Data Reviewed and Analyzed
The data element considers information reviewed or analyzed by the physician or qualified healthcare professional. This may include tests, documents, independent interpretation, or discussion with external professionals. The specific data categories have defined requirements. Coders should therefore evaluate the documentation against the current E/M guidelines.
Risk of Patient Management
The risk element considers the risk associated with patient management. Prescription drug management is one common example within the moderate-risk category. Risk must reflect an actual management decision. Merely listing medications does not automatically establish prescription drug management.
Does 99204 cpt code Have a Time Requirement?
Yes, 99204 cpt code has a total-time range of 45-59 minutes, and the time can be used to help select the code. This time is for the practitioner’s qualifying work for the encounter. Time does not mean only face-to-face interaction. Applicable total time can include qualifying activities performed before and after the patient interaction. The work must occur on the same calendar date.
The AMA explains that time may include preparation, face-to-face or telehealth work, documentation, and follow-up activities performed on that date. If the documented qualifying time is below 45 minutes, 99204 should not be selected solely by time. A different E/M level may apply based on the actual documentation.
99204 CPT Code Time vs MDM
Providers can select 99204 using either MDM or qualifying total time. These are separate pathways for selecting the office or outpatient E/M level.
| Selection Method | Requirement |
|---|---|
| MDM | Moderate medical decision making |
| Time | 45 to 59 minutes total time |
| History | Medically appropriate |
| Examination | Medically appropriate |
If MDM supports 99204 cpt code, the provider does not need to spend 45 minutes. Conversely, 45 minutes alone does not automatically establish 99204 if the time documentation does not support qualifying work.
This distinction prevents a common coding mistake. Coders should not assume that every 99204 encounter must last 45 minutes.
What Counts Toward 99204 cpt code Time?
If the E/M level is determined by the time, the qualifying practitioner’s work on the date of the encounter may count. This includes some things that are done prior to, during and after the patient interaction.
These can involve reviewing pertinent records, evaluating the patient, providing counselling, ordering medications and/or tests, making documentation, and referring or coordinating care. The activity should be consistent with the CPT time rules.
Time spent by clinical staff cannot simply be added to the practitioner’s total time. The documentation should support the practitioner’s own qualifying work.
99203 vs 99204 CPT Code
The only difference between 99203 and 99204 is the E/M level. CPT 99203 is low level MDM and CPT 99204 is moderate level MDM. They have different duration periods.
| Feature | CPT 99203 | CPT 99204 |
|---|---|---|
| Patient type | New | New |
| MDM | Low | Moderate |
| Time | 30 to 44 minutes | 45 to 59 minutes |
| E/M family | Office/outpatient | Office/outpatient |
| Complexity | Lower | Higher |
99204 is not necessarily warranted for a longer visit. When the MDM method is employed, the provider may choose the code. Likewise, a new patient does not automatically make them a 99204. Coding for the patient status is distinct from the complexity of the service.
99204 CPT Code RVU for 2026
The 2026 work RVU for CPT 99204 is 2.60. CMS’s 2026 relative value files also list different practice expense values for facility and non-facility settings.
For the current 2026 release, the published values are:
| RVU Component | 99204 Value |
|---|---|
| Work RVU | 2.60 |
| Practice expense RVU, non-facility | 2.47 |
| Practice expense RVU, facility | 0.66 |
| Malpractice RVU | 0.24 |
| Total RVUs, non-facility | 5.31 |
| Total RVUs, facility | 3.50 |
CMS explains that Medicare payment uses work, practice expense, and malpractice RVUs. Geographic practice cost indices then adjust those components for locality. The facility and non-facility totals differ because practice expense values differ. Therefore, publishing one total RVU without identifying the setting can be misleading. CMS’s 2026 files include January, April, July, and October releases. The October RVU26D release is the latest 2026 file currently available.
How Is 99204 cpt code Reimbursement Calculated?
99204 cpt code reimbursement is not a universal national amount. Medicare payment depends on the applicable RVUs, geographic adjustments, conversion factor, and other payment policies. For 2026, CMS established separate conversion factors for qualifying APM participants and other practitioners. The final values are approximately $33.57 for QPs and $33.40 for non-QPs.
The basic Medicare payment process applies geographic practice cost indices to the RVU components. The resulting adjusted RVUs are then multiplied by the applicable conversion factor. Commercial payer reimbursement can differ substantially. Contract terms, locality, network status, and payer policy can all affect the actual allowed amount.
99204 CPT Code Reimbursement in 2026
A single 99204 reimbursement amount should not be presented as universal. Medicare payment varies according to locality and facility status. Commercial insurance payments also depend on individual payer contracts.
For example, a 2026 national calculation using the published non-facility RVUs and a $33.4009 conversion factor produces approximately $177.36 before locality adjustment. A facility calculation produces approximately $116.90 using the same conversion factor. These figures are national baseline calculations rather than universal payable amounts.
The actual Medicare amount can therefore differ by geographic location. CMS recommends using the Physician Fee Schedule Look-Up Tool for locality-specific payment information. Patient responsibility is not the Medicare allowed amount. What the patient may have to pay for may be impacted by deductibles, coinsurance, supplemental coverage, among other things.
What Is the Cost of CPT 99204?
There is no single national 99204 CPT code cost. The patient’s cost depends on insurance coverage and the provider’s contracted or applicable payment amount. For Medicare beneficiaries, the allowed amount is affected by the Physician Fee Schedule. The patient’s responsibility can then depend on deductible and coinsurance requirements.
The cost might vary depending on the insurance plan in commercial insurance. A person might have a copayment, coinsurance, deductible or other benefit arrangement. Thus, the CPT code does not set a specific amount of money for each patient.
What Modifiers Apply to 99204 cpt code?
The types of modifiers will vary depending on the context of the service. There is no default modifier on all claims of CPT 99204. The modifier is required to tell what happened exactly in the encounter that is being documented.
Modifier 25: Separately Identifiable E/M Service
If a significant, separately identifiable E/M service has been provided, then Modifier 25 may apply. A service must be reported using another procedure/service on the same date. Documentation should be used to evidence work that is separate to the other service.
Modifier 24: Unrelated Postoperative E/M Service
Modifier 24 may apply to certain unrelated E/M services during postoperative periods. The encounter must meet the applicable global surgical package requirements. Documentation should clearly support why the service is unrelated.
Telehealth Modifiers: Payer-Specific Requirements
Telehealth claims may require specific modifiers and place-of-service reporting. Medicare and commercial payers can apply different telehealth billing requirements. Coders should verify the current payer guidance before submitting claims.
Modifier Selection: Match the Actual Service
Modifiers should never be added simply to bypass a claim edit. Each modifier should represent the actual circumstances surrounding the encounter. Supporting documentation should clearly justify the modifier selected.
99204 cpt code Documentation Requirements
Documentation should support the medical necessity of the encounter. It should also support the method used to select the E/M level. For MDM-based selection, documentation should support the relevant problems, data, and management risk. The record should make the medical decision-making understandable.
For time-based selection, the record should document the total qualifying time. The activities included should comply with the applicable CPT rules.
A useful documentation structure includes:
- Reason for the encounter
- Problems addressed
- Relevant clinical findings
- Data reviewed or analyzed
- Management decisions
- Prescription or treatment decisions
- Medical necessity
- Total time when applicable
- Orders and follow-up plans
The documentation should reflect the actual encounter. Templates should not be used to manufacture complexity.
Common 99204 cpt code Billing Mistakes
Mistake 1: Assuming Every New Patient Gets 99204
New patient status does not determine the E/M level by itself. The service must support the selected level through MDM or qualifying time.
Mistake 2: Selecting 99204 From Visit Length Alone
Time can support 99204 when it reaches the applicable range. However, the documented time must represent qualifying practitioner work on that date.
Mistake 3: Counting Staff Time
Staff time cannot simply be added to practitioner time. The total must reflect qualifying work performed by the physician or qualified healthcare professional.
Mistake 4: Using MDM Without Supporting Documentation
A complex diagnosis does not automatically establish moderate MDM. The documentation should support the applicable MDM elements.
Mistake 5: Treating 45 Minutes as Mandatory
Forty-five minutes is relevant when time selects the code. It is not a mandatory duration when moderate MDM independently supports 99204.
Mistake 6: Applying Modifiers Automatically
Modifiers describe specific circumstances. They should not be added simply because another service occurred on the same date.
Mistake 7: Using One Reimbursement Amount Everywhere
Medicare reimbursement varies by locality and setting. Commercial payer reimbursement also depends on contracts and individual payment policies.
99204 cpt code Real-World Example
Example 1: Moderate MDM Supports 99204
A new patient presents with multiple conditions requiring active management. The provider reviews relevant records and makes medication management decisions.
The documentation supports moderate MDM. The provider does not need to document 45 minutes merely because 99204 was selected.
The correct level depends on the documented MDM. The diagnosis list alone would not establish the code.
Example 2: Time Supports 99204
A new patient encounter involves 52 minutes of qualifying practitioner work. The provider documents the total time and the relevant activities performed.
The documented time falls within the 45 to 59-minute range. Therefore, time may support 99204 when the remaining coding requirements are satisfied.
Example 3: Time Does Not Reach 99204
A new patient encounter takes 40 minutes of qualifying practitioner time. The documentation does not support moderate MDM.
In this situation, 99204 should not be selected using time. A lower-level new patient code may be appropriate if supported.
CPT 99204 vs 99205
This applies to office or outpatient E/M services to new patients. The major difference is the amount of MDM or Qualifying total time.
| Feature | CPT 99204 | CPT 99205 |
|---|---|---|
| Patient | New | New |
| MDM | Moderate | High |
| Time | 45 to 59 minutes | 60 to 74 minutes |
| Complexity | Moderate | High |
| E/M family | Office/outpatient | Office/outpatient |
The difference is clinically important for coding. A provider should select the highest level supported by the documentation.
CPT 99204 vs 99203 vs 99205
These three codes form a common new patient E/M sequence. They move from low to moderate to high medical decision making.
| Code | MDM | Time |
|---|---|---|
| 99203 | Low | 30 to 44 minutes |
| 99204 | Moderate | 45 to 59 minutes |
| 99205 | High | 60 to 74 minutes |
The time ranges apply when total time determines code selection. MDM can independently determine the appropriate level. This comparison is useful during coding review. It helps prevent choosing a code solely because the patient is new.
99204 cpt code and Medical Necessity
Medical necessity remains fundamental to E/M coding. A higher code should reflect the actual work and clinical decision making required.
Documentation should explain why the encounter required the reported level. The record should connect the patient’s problems with the evaluation and management decisions.
A longer note does not automatically establish greater medical necessity. Similarly, a complex-looking template does not replace actual clinical decision making.
99204 cpt code Audit Considerations
Auditors commonly evaluate whether the documentation supports the reported E/M level. They may review MDM elements, time documentation, patient status, and medical necessity. Time-based claims should support the total reported time. MDM-based claims should demonstrate the elements used to select the level.
Modifier use may also receive scrutiny. The documentation should explain the circumstances supporting any separately reported modifier. A strong audit trail starts with accurate clinical documentation. Coding should reflect that documentation rather than attempt to increase reimbursement.
How Should Coders Review 99204 cpt code?
First, verify that the patient is new to you. Next, check if the provider has chosen the level by using MDM or time. If MDM was utilized, assess two of the three components of MDM. If time was used, check the total time used and the activities included.
Then, check medical necessity and documentation. Lastly, examine modifiers, pagers rules, place of service and applicable reimbursement rules. This sequence promotes the separation of coding decisions from payment calculations. In addition, it simplifies the audit of the review process.
Key Takeaways About CPT 99204 cpt code
99204 cpt code is a new E/M code that will be applicable to the office or outpatient setting for a new patient. When time is the criterion for selection, it is considered to be moderate MDM, or 45 to 59 minutes of qualifying time. The 2026 work RVU is 2.60. Based on 2026 current CMS data, the total RVUs in the non-facility setting are 5.31 and 3.50 in the facility setting.
Medicare reimbursement does not take the form of a single national rate. The final payment varies based on geographic adjustments, facility status, conversion factors, and policies. The most crucial coding principle is very simple. Only report 99204 if documented service supports requirements.
