99425 cpt code: Billing and Reimbursement Guide 2026

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99245 CPT code is an ad-on code for principal care management services. This pcm additional time billing is used when a physician provides additional 30 minutes of services in a calendar month.  Healthcare experts can only assign this code after spending 60 minutes including the first 30 minutes that have a base code 99424.

This comprehensive guide will cover important details about Principal care management add-on code such as the difference of 99425 vs 99424, documentation and reimbursement.

99425 CPT Code: Overview 

CPT Code 99425 is a part of evaluation and management services, used for preventive medicine services. This code involves 30 additional minutes of the provider and requires a moderate level of decision making.

The code involves more than one diagnosis medication management or test interpretation resulting in timely reimbursement and detailed documentation requirements.

When Can 99425 Be Billed?

CPT 99425 is billed when a patient receives Principal Care Management (PCM) for one complex, high-risk chronic condition and the provider performs additional qualifying PCM work during the same calendar month.

The key billing requirements are:

  • Qualifying condition: The patient must have a single high-risk chronic condition expected to last at least three months and requiring ongoing, complex management.
  • Base PCM service: The initial 30 minutes must be reported with CPT 99424 before billing the additional time.
  • Additional time: 99425 reports each additional 30 minutes of qualifying PCM services provided during the calendar month.
  • Provider work: The physician or qualified healthcare professional must provide or direct the qualifying PCM services.
  • PCM services: The work may include creating or updating a disease-specific care plan, managing treatment, and coordinating care with other practitioners.
  • Documentation: Medical records should support the qualifying condition, services provided, and time spent.

CPT 99425 Reimbursement Rate

How 99425 Reimbursement Is Determined

The CPT 99425 reimbursement rate is not one fixed amount for every provider. Medicare payment is determined through the Physician Fee Schedule (PFS). CMS uses relative value units (RVUs), geographic adjustments, and a conversion factor to calculate the payment amount for a specific service.

Medicare Payment Factors

For 99425, the Medicare payment calculation can be affected by several components:

  • Work RVU: Reflects the physician or qualified professional’s work.
  • Practice expense RVU: Accounts for the resources needed to provide the service.
  • Malpractice RVU: Reflects professional liability costs.
  • Geographic adjustment: Adjusts payment for differences in practice costs across Medicare localities.
  • Conversion factor: Converts the adjusted RVUs into a dollar payment amount.

Geographic Differences

The amount listed for a CPT code can change by Medicare locality. CMS applies a Geographic Practice Cost Index (GPCI) to the work, practice expense, and malpractice components of the service. This means the same service may have different Medicare payment amounts in different areas.

Payer Differences

Medicare rates should not be treated as the payment amount for every insurer. Commercial payers may use their own fee schedules or negotiated contract rates. A provider should therefore check the patient’s specific payer before estimating reimbursement.

Where to Check the Rate

CMS updates its Physician Fee Schedule information throughout the year. The PFS Look-Up Tool allows users to search payment information by code, year, and Medicare locality. Providers can use it to check the applicable 99425 payment amount instead of relying on a national estimate.

CPT 99425 Documentation

Proper documentation supports 99425 cpt code billing and shows that the reported service was actually provided. The medical record should connect the patient’s condition, care management work, and additional time reported for the month.

Patient Eligibility

Document why the patient qualifies for Principal Care Management. The record should identify the complex chronic condition and explain why it requires ongoing management.

Diagnosis and Condition

Record the specific condition being managed. The documentation should support that the condition is expected to last at least three months and carries a significant risk of hospitalization, acute worsening, functional decline, or death.

Care Management Work

Describe the actual work performed during the month. This may include reviewing the patient’s condition, managing treatment, updating the care plan, addressing medication needs, or coordinating care with other practitioners.

Time and Service Details

Record the time spent on qualifying work and the date of each documented activity. These records should support PCM additional time billing and should not include time already counted toward another separately billed service.

Provider Documentation

Identify the physician or qualified healthcare professional responsible for the service. If eligible clinical staff perform part of the work, document their involvement and required supervision.

Care Plan and Communication

Keep the disease-specific care plan in the medical record. Document relevant communication, care coordination, treatment changes, and follow-up activities when they form part of the service.

Good documentation should clearly show why the patient qualified, what work was performed, who provided it, and how the reported time was supported.

99425 vs 99424

The 99425 cpt code works as an add-on to the initial PCM service reported with 99424. The two codes serve different billing roles. 99424 reports the base PCM service, while 99425 reports additional qualifying PCM time. 

Understanding this difference helps providers select the correct code and avoid billing an add-on service as a standalone service. 

Feature9942499425
Service typePCMPCM add-on
PurposeInitial PCM serviceAdditional PCM time
Billing roleBase codeAdd-on code
TimeBase timeAdditional time
Can stand alone?Yes, when requirements are metNo
Use withQualifying PCM service99424
Main functionReports the initial PCM workReports additional qualifying PCM work

How to Bill CPT 99425

Before billing the 99425 cpt code, providers should verify patient eligibility, qualifying PCM services, additional time, and supporting documentation. Following these steps can help reduce billing errors and support the claim during payer review.

1. Confirm Patient Eligibility

Verify that the patient has a qualifying complex chronic condition that meets PCM requirements. Review the medical record before submitting the claim.

2. Provide Qualifying PCM Services

Provide care management services related to the patient’s qualifying condition during the calendar month. The work must meet applicable PCM requirements.

3. Track Additional Time

Record the qualifying additional time spent on PCM activities. Keep accurate time records and avoid counting time already reported for another service.

4. Document the Work

Document the patient’s condition, care management activities, provider involvement, and time spent. Records should clearly support the service reported.

5. Report With the Base Code

Report 99425 as an add-on code with the appropriate base PCM service. It should not be submitted as a standalone code.

6. Check Payer Rules

Review current Medicare or commercial payer requirements before submitting the claim. Check rules for eligibility, documentation, claim submission, and reimbursement.

Conclusion

The 99425 cpt code is an add-on service for additional Principal Care Management time. Accurate billing depends on patient eligibility, qualifying PCM work, time tracking, and complete documentation. Providers should also confirm current Medicare or payer-specific requirements before submitting a claim. 

Understanding how 99425 works with the base PCM service can help reduce billing errors and support proper reimbursement. For healthcare organizations that need reliable medical billing support, 

MedRemote can help manage billing workflows, documentation requirements, and claim-related tasks. A clear process makes PCM billing easier to manage while helping providers maintain accurate and compliant records.

Frequently Asked Questions

What is CPT 99425 used for?

It is used to report additional qualifying PCM time beyond the base PCM service during the same calendar month.

Is 99425 an add-on code?

Yes. It is an add-on code and must be reported with the appropriate base PCM service rather than as a standalone service.

What is the difference between 99424 and 99425?

99424 reports the initial PCM service, while 99425 reports additional qualifying PCM time after the base service.

How much additional time does 99425 cover?

99425 represents an additional 30 minutes of qualifying PCM services during the calendar month.

Can 99425 be billed without 99424?

Generally, no. Because 99425 is an add-on code, the applicable base PCM service must also be reported when billing requirements are met.

What documentation is needed for 99425?

Records should support patient eligibility, the qualifying condition, PCM activities, additional time, provider involvement, and other required care plan or communication details.

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