99205 CPT Code: Billing, MDM Requirements & Reimbursement

New patient visits are where most outpatient practices either capture or lose the most revenue per encounter. CPT code 99205 (the Level 5 new patient E/M code) sits at the top of that series. 

The problem is not that 99205 is hard to understand. It’s that the documentation discipline it requires is different from what most practices are used to. Recently, some surveys changed what “correctly documented” means for this code, and players are enforcing those changes more aggressively in 2026 than in any previous year.

This guide covers what the code requires, where billing goes wrong, and what the 2026 changes mean for how you document and submit it.

What is CPT Code 99205?

“Office or other outpatient visit for the evaluation and management of a new patient, which requires a medically appropriate history and/or examination and high medical decision making.”

What does it cover?

It covers the physician’s clinical work during a new patient encounter that reaches the highest complexity threshold in the outpatient E/M system. That means cognitive work: evaluating the patient’s condition, analyzing data, making management decisions, and planning treatment. Any procedure done on the same day is billed separately with a procedure code.

The code was significantly restructured effective January 1, 2021. Before that, a comprehensive history and a comprehensive physical exam were both required. Now neither is. What replaced them is Medical Decision Making complexity or total provider time. The note still needs a medically appropriate history and/or exam but “medically appropriate” means relevant to the clinical situation, not a fixed number of reviews of systems items or organ systems examined.

Who can bill it?

Physicians, nurse practitioners, and physician assistants who are credentialed with the payer and personally perform the service. You cannot bill 99205 based on work performed by staff, medical assistants, or residents without attending documentation and supervision rules being met. Dietitians, physical therapists, occupational therapists, and other allied health professionals are not authorized to bill the E/M series and cannot use this code.

Important distinction

CPT 99205 covers evaluation and management work only. It does not cover procedures performed during the visit. If a procedure is performed on the same day, it must be billed separately using the appropriate procedure code, with Modifier -25 appended to the 99205 to indicate a significant, separately identifiable E/M service was provided.

Key Features of CPT Code 99205

• New patients only. The code is restricted to patients who have not received professional services from the same provider or any provider of the same specialty and subspecialty in the same group within the past three years. This is a group-level rule, not a provider-level rule.
• Two ways to qualify: MDM or time. You pick one per encounter. High-complexity MDM or total provider time of at least 60 minutes on the date of service. You cannot combine both or choose retroactively after the visit.
• History and exams are no longer scored elements. The 1995 and 1997 documentation guidelines that required specific history components and exam bullets are gone for this code series. History and exams are still required, but their depth is determined by clinical appropriateness, not a checklist.
• Prolonged services have a separate threshold for Medicare vs. commercial payers. Visits running past 74 minutes require an add-on code but which code and when it applies differs. Commercial players use +99417 starting at 75 minutes. Medicare uses +G2212 starting at 89 minutes. These codes are not interchangeable.
• Telehealth compatible. 99205 is billable for audio-video telehealth visits with Modifier 95. Audio-only encounters require Modifier 93, plus explicit documentation that video was available but the patient could not or declined to use it.

When to Use CPT 99205

Use 99205 when a new patient encounter generates high-complexity MDM or when your total documented time on that date reaches 60 minutes or more. High-complexity MDM most commonly appears in these clinical situations:

• A new patient with multiple chronic conditions where those conditions interact and affect each other’s treatment, not just a list of diagnoses, but conditions that create genuine management trade-offs
• Any presentation where the differential includes a life-threatening or function-threatening diagnosis, even if the final diagnosis turns out to be benign. Per AMA guidance, the severity of the suspected condition at the time of evaluation drives MDM, not the final diagnosis.
• Encounters involving drug therapy that requires intensive toxicity monitoring. Warfarin, lithium, methotrexate, immunosuppressants, chemotherapy agents, clozapine. The decision to start, adjust, or continue these drugs qualifies Element 3 at the high level.
• Any encounter where the decision to hospitalize the patient or explicitly not to hospitalize them is documented and weighed
• Complex data review involving external records from multiple prior providers, independent interpretation of imaging or lab results, or direct clinical discussion with an external treating physician
• Time-based billing for 99205 is appropriate when the encounter genuinely runs long: extensive family counseling, initial psychiatric evaluations with collateral historians, complex care planning for a serious new diagnosis, or a new patient visit that involves substantial pre-visit chart review and post-visit coordination.

Time-based billing scenarios

When total provider time on the date of service reaches 60 minutes, 99205 may be selected on that basis alone. This includes:

• Complex family counseling for a new patient with serious diagnosis
• Comprehensive initial psychiatric evaluation with collateral history
• New patient consultation with extensive record review from multiple prior providers
• End-of-life care discussion and advance directive planning at a new patient visit

When NOT to Use CPT 99205

Selecting 99205 when the documentation does not support it is the most common and costly E/M coding error. Here is when it does not apply:

• If the patient has been seen by any provider in the same specialty and same group within the past three years, they are established. 99205 is exclusively for new patients as defined by CMS.
• A patient with one or two controlled chronic conditions being newly addressed does not reach high MDM. That presentation belongs at 99204 (moderate complexity, 45–59 minutes).
• New patient with a single acute minor problem, no data review, no high-risk management decisions. These code to 99202 or 99203.
• Two of the three MDM elements must meet the high-complexity threshold. One element at high does not qualify for 99205.
• Initial hospital care uses a different E/M code family (99221–99223). 99205 is outpatient and office-based only.

Compliance Risk: Billing 99205 for established patients creates a claims pattern that payers flag in post-payment audits. Once flagged, they will pull records across the entire date range and require repayment on every miscoded claim identified. This is not a technicality. It is a substantive billing rule with real financial consequences.

CPT 99205 vs Related Codes

The new patient E/M series runs from 99202 to 99205. Each level is defined by MDM complexity or a time range. Here is where 99205 sits relative to similar codes:

Medical Decision Making Requirements

High complexity MDM is the primary documentation standard for 99205. To qualify, the encounter must meet the high-complexity level in at least 2 of these 3 elements:

1. Problems Addressed

One or more chronic illnesses with severe exacerbation, progression, or side effects of treatment. OR an acute/chronic illness posing a threat to life or bodily function.

e.g. Uncontrolled T2DM (A1c 10.1%, not at goal), suspected lung malignancy, COPD exacerbation requiring hospitalization assessment

2. Data Reviewed & Analyzed

Extensive review: records from 3+ external sources, independent test interpretation (not reading a report, interpreting the result yourself), or direct discussion with an external treating physician.

e.g. Reviewed endocrinology and nephrology records + independently interpreted today’s CMP K+ result in context of CKD and medication plan

3. Risk of Management

Drug therapy requires intensive toxicity monitoring. Decision to hospitalize or not hospitalize. Major elective surgery with identified patient-specific risk factors. Parenteral controlled substance decisions.

e.g. Initiating warfarin with CKD and prior GI bleed. High bleeding risk, documented HAS-BLED score, INR monitoring plan in 5 days

The Stability Rule (Practices get this wrong) 

A patient who has not achieved their treatment goal is not considered stable, even if their condition has not visibly changed and poses no immediate life threat.

A patient with diabetes at an A1c of 9.2% after three medication trials is not stable. Documenting it as a stable chronic illness codes Element 1 to moderate. Documenting the severity, treatment history, and clinical reasoning behind the next intervention brings it to high.

The clinical work is the same either way. The documentation is not.

The 2-of-3 rule

Meeting only one element at high (regardless of how extreme) does not qualify for 99205. It qualifies for 99204. Two elements must independently reach the high threshold. This is not an interpretation; it is the AMA’s rule verbatim.

ICD-10 Codes for CPT 99205

Unlike some procedure codes that pair with a single standard diagnosis code, 99205 pairs with whatever diagnosis codes reflect the patient’s conditions addressed at the encounter. The ICD-10 selection should directly support the MDM complexity claimed.

The ICD-10 codes on a 99205 claim should reflect the actual complexity of the visit. A claim with 99205 paired only with well-controlled, stable diagnoses creates a logical mismatch — high-level code, low-acuity diagnoses that flags in payer review. Code the problems that actually drove the complexity.

Modifiers with CPT Code 99205

Modifier use on 99205 claims directly affects whether the claim pays, gets denied, or triggers an audit. These are the modifiers that apply:

Modifier 25

The most common modifier used with 99205. Append Modifier 25 when a procedure or other service is performed on the same date as the E/M visit. It signals to the payer that the evaluation and management service was significant and separately identifiable from the procedure performed.

The documentation requirement: the E/M note must stand on its own. It needs its own chief complaint, assessment, and management plan that goes beyond the decision to perform the procedure. A note that only discusses the procedure does not support Modifier 25.

Modifier 95

Used for telehealth encounters delivered via audio-video technology. Append to 99205 when the visit occurs over a live video platform. For Medicare, use Place of Service 10 (patient’s home) at the non-facility rate since January 2024.

Modifier 93

For audio-only telehealth encounters when the patient is unable or declines to use video technology. The provider must document in the record that audio-video capability was available but the patient was unable or unwilling to use it. This is a hard documentation requirement. 

Modifier 57

Used when the decision to perform major surgery is made during the E/M visit, and a global surgical period applies to that procedure. Do not use Modifier 57 for minor surgery decisions, it is specific to major surgery global period situations only.

Documentation Requirements

Documentation for 99205 carries more weight than any other new patient E/M code because the reimbursement is highest and payer scrutiny is highest. Every element that supports the code level must be visible in the note, not implied.

Required elements

• Chief complaint. A clear statement of why the patient is presenting. Without one, medical necessity for the visit has no documented basis.
• Medically appropriate history. Relevant to the presenting complaint. Does not need to follow the old 1995/1997 HPI format, it needs to be clinically appropriate for what is being evaluated.
• Medically appropriate examination. Relevant to the problems addressed. No minimum number of organ systems required under current guidelines, just appropriate to the clinical situation. 
• Medical Decision Making documentation.The note must explicitly reflect 2 of 3 MDM elements at high complexity. Name the problems and their severity. Specify what data was reviewed and why it was relevant. Document the management risk, name and the specific risk factor that qualifies (drug therapy, hospitalization decision, etc.).
• New patient status confirmation.The record should make clear this is a new patient encounter. Some practices include a brief statement; others rely on EHR demographic verification. Either way, the provider must have confirmed it before coding the new patient series.
• Provider authentication.Electronic signature or equivalent. Authenticates who performed the service and when.

Insurance Coverage & Reimbursement Rates

CPT 99205 is covered by Medicare, Medicaid, and commercial payers when documentation supports medical necessity and the new patient criteria are met.

Medicare

Medicare reimburses 99205 under the Physician Fee Schedule using the relative value unit (RVU) system. The 2026 fee schedule introduced split conversion factors for the first time; reimbursement now depends on whether the provider participates in an Advanced Alternative Payment Model (APM).

Source: CMS-1832-F Final Rule. Facility-setting rates are lower due to reduced practice expense RVU components.

Medicaid

Medicaid coverage and reimbursement for 99205 varies by state. Most states cover new patient office E/M services at rates below Medicare. Some states have moved to APC-based outpatient rate structures. 

Commercial payers

Commercial payers typically apply a multiplier to the Medicare RVU value. Depending on contract terms and geography, 99205 commonly reimburses $250–$350 from major commercial carriers. Older contracts negotiated before the 2021 E/M changes may have outdated rate structures that undervalue the current code.

Cigna’s 2025–2026 Downcoding Program — R49

October 1, 2025, Cigna launched the Evaluation and Management Coding Accuracy program (R49). It targets 99204, 99205, 99214, and 99215 claims with an automated pre-payment review. When the algorithm determines that documentation does not support the billed code level, the claim is adjusted down one level before payment.

Why does this matter?

A correctly billed 99205 that uses vague MDM language gets paid at 99204 rates. The provider never receives notice until the EOB arrives with the lower payment. Appeals require documentation resubmission and take time to resolve.

Common Billing Errors & Denial Reasons

These are the specific errors that generate denials and post-payment audit findings on 99205 claims.

Compliance & Audit Risks

99205 faces more scrutiny than any other code in the new patient series. The combination of high reimbursement and complex documentation requirements makes it a consistent audit target.

• OIG and CMS post-payment audits target high-value E/M codes. Practices with 99205 utilization significantly above specialty benchmarks draw statistical outlier flags. Once flagged, auditors pull records across an extended date range.
• Cigna’s R49 program performs pre-payment algorithmic review. Claims adjusted before payment cannot be undone without a formal appeal and documentation resubmission.
• HIPAA compliance applies to all documentation supporting the claim. Records requested in an audit must be produced in a compliant format under the timeframes the payer specifies.
• Internal audits are the most effective defense. Reviewing a sample of 99205 claims quarterly against the MDM table identifies documentation gaps before payers do.

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Tips for Providers & Billing Staff

• Build MDM documentation into note templates. A structured assessment section that prompts for problem severity, data sources reviewed, and risk factors prevents gaps before they happen.
• Train providers on the 2021 MDM grid. Many physicians document excellent clinical care that supports 99205, but frame it in language that does not map to the AMA’s MDM elements. A one-hour training on how clinical complexity translates into MDM documentation changes coding accuracy immediately.
• Verify new patient status before coding. Build a workflow that checks the group’s encounter history at the same specialty before any new patient code is selected. This is non-negotiable.
• Run quarterly E/M distribution reports. Compare your 99202–99205 distribution against specialty national averages. Outlier patterns should be investigated and corrected before they become a payer inquiry.
• Do not add modifiers by default. Modifier -25 is only appropriate when the E/M is genuinely separately identifiable from a procedure. Applying it routinely.
• When billing by time, document time specifically. “Approximately an hour” is not a time statement. Total minutes, stated explicitly in the note, is what auditors require.

Conclusion

CPT code 99205 is not a difficult code. The requirements are specific and knowable. What makes it a problem for most practices is the documentation gap between the clinical work that genuinely qualifies and the note language that makes it visible to a payer.

Chart audits show the same pattern: physicians doing the work of a 99205 visit, documented well enough clinically, but coded as 99204 because the MDM elements are implied rather than explicit. That pattern costs thousands annually in recoverable revenue.

In 2026, with Cigna’s automated pre-payment review active and payer analytics catching distribution outliers earlier than ever, both the undercoding risk and the overcoding audit risk have increased. Accurate coding is the only position that manages both.

If you want an objective assessment of how your current 99205 claims hold up against 2026 MDM requirements, BilNow’s certified coding team offers a free E/M audit with no commitment required.

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FAQs

Can 99205 be billed on the same day as a preventive visit?

Yes, if the problem-oriented E/M is significant and separately identifiable from the preventive service. In that case, report 99205 with modifier 25 in addition to the preventive code. The documentation has to clearly show the extra medically necessary work beyond the routine preventive exam. For Medicare, this same-day logic also affects whether add-on code G2211 is payable.

How does the 3-year new patient rule work when a practice merges or a physician changes groups?

A patient is still considered new only if they have not received professional services in the last 3 years from that physician, or from another physician of the same specialty and subspecialty in the same group practice. Medicare contractors also note that the logic is tied to the rendering provider and group structure, often through the NPI/group relationship. A merger or group change does not automatically make everyone new.

My documentation supports 99205 but I billed 99204 to stay safe. Can I rebill?

Usually yes, if timely filing is still open and the payer allows a corrected claim or reconsideration. You need the chart to clearly support 99205 by either high-level MDM or the required total time. Do not upcode after the fact unless the original documentation already supports it. Payer rules for corrected claims still control.

Does 99205 require the provider to personally document the note, or can scribes document on their behalf?

A scribe can document the encounter, but the treating physician or NPP must review and authenticate the note with their signature, and in Medicare guidance, date as required by contractor rules. CMS does not require the scribe to sign the note, but the provider is responsible for what is documented.

How do you handle a Cigna R49 adjustment? Is it worth appealing?

Usually yes, if the chart really supports the billed level. Cigna’s R49 policy reviews certain high-level E/M claims and may reduce them by one level when they believe the documentation does not support the code. If your MDM or time is solid, appeal with the full note and a short coding rationale. If the chart is weak, appealing is usually not worth the effort.

What is G2211 and should it be billed with 99205?

G2211 is the Medicare visit complexity add-on code for office/outpatient E/M visits when the visit reflects the clinician’s ongoing, longitudinal relationship with the patient or care for a serious/complex condition. It can be billed with 99205 when the requirements are met. But if modifier 25 is on the E/M, Medicare generally does not pay G2211, except for certain same-day services starting in 2025, including Annual Wellness Visits, vaccine administration, and certain Medicare Part B preventive services.