Ntrprof ph1/ntrnet/ehr rfrl
CPT 99452 covers when a treating physician consults with another specialist via phone, internet, or electronic health record for advice on a patient's care, taking 5-10 minutes of medical discussion time.
RVU breakdown
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
Billing tips
Document the exact start and stop time of the consultation, as 99452 requires 5-10 minutes; consultations under 5 minutes are not billable, while those 11-20 minutes should use 99451
Impact: Time documentation errors cause 40-50% of denials; precise timing prevents downcoding or complete denial
Ensure the requesting provider's name, NPI, and specific clinical question are documented in the medical record before billing
Impact: Missing requesting provider information is the #1 audit trigger; can result in full recoupment of $33.64 plus penalties
Bill only once per patient per requesting provider per encounter; multiple calls on the same date for the same issue should be combined
Impact: Duplicate billing can trigger fraud investigation; consolidate time to bill appropriate code level
Do not bill 99452 for consultations with patients or their family members; this code is strictly for provider-to-provider communication
Impact: Patient-facing communication requires different E/M codes; incorrect use results in 100% denial
Verify Medicare coverage as 99452 was added in 2019 and some non-Medicare payers may not recognize it; confirm payer policy before service
Impact: Commercial payer recognition varies from 60-90%; pre-verification prevents write-offs averaging $33.64 per incident
Document your clinical opinion and any recommendations provided in a written or electronic report back to the requesting provider
Impact: Lack of documented feedback to requesting provider fails the 'interprofessional' requirement, causing audit failures in 35% of reviewed cases
Common denials
Insufficient time documentation - consultation time not clearly documented or falls below 5-minute threshold
How to appeal: Submit appeal with exact time stamps from EHR, phone logs, or video platform showing duration. Include attestation statement signed by provider confirming time spent. Reference CMS guidelines requiring only 5 minutes for 99452.
Missing requesting provider information - no documentation of who initiated the consultation or why
How to appeal: Provide supplemental documentation showing consultation request (email, EHR message, phone log). Include requesting provider's name, NPI, and clinical question. Cite CPT descriptor requirement for 'consultation requested by another healthcare professional.'
Lack of medical necessity - payer determines consultation did not require physician-level expertise
How to appeal: Document complexity of clinical situation, differential diagnoses considered, and specialized knowledge required. Include evidence of how consultation changed care plan. Reference patient's medical complexity and requesting provider's specific need for specialist input.
Bundling with other E/M services on same date - payer considers consultation included in other services
How to appeal: Demonstrate that 99452 was a separate interprofessional consultation, not part of patient-facing E/M service. Show different providers involved, separate documentation, and distinct purpose. Include time documentation proving services were separate and sequential.
Frequently asked questions
What is CPT code 99452 used for?
CPT 99452 is used when a physician provides an interprofessional consultation to another healthcare provider via telephone, internet, or electronic health record, spending 5-10 minutes in medical discussion about a patient's care without directly examining the patient.
How much does Medicare pay for CPT 99452 in 2025?
Medicare pays $33.64 for CPT 99452 in 2025 (national average for both facility and non-facility settings), based on 1.04 total RVUs and the 2025 conversion factor of 32.3465.
What is the difference between CPT 99452 and 99451?
CPT 99452 covers 5-10 minutes of interprofessional consultation time, while 99451 covers 11-20 minutes. Use 99451 for longer consultations; if the consultation lasts exactly 10 minutes or less, use 99452. Consultations under 5 minutes are not separately billable.
Can nurse practitioners bill CPT 99452?
No, CPT 99452 is physician-only and cannot be billed by nurse practitioners, physician assistants, or other non-physician practitioners. Only physicians (MD/DO) providing consultative expertise can report this code.
How many times can you bill 99452 for the same patient?
You can bill 99452 once per patient per requesting healthcare professional per 14-day period. Multiple consultations with the same requesting provider about the same patient issue within 14 days should be combined into a single code based on total cumulative time.
Does CPT 99452 require patient consent?
While not explicitly required by the CPT code descriptor, many healthcare systems obtain general consent for interprofessional consultations as part of admission or treatment agreements. Check your organization's compliance policies and state regulations regarding patient notification of specialist consultations.
What documentation is required to bill CPT 99452?
Required documentation includes: requesting provider's name and NPI, specific clinical question, exact consultation time (5-10 minutes), patient identification, clinical assessment, recommendations provided, communication method, and evidence that findings were reported back to the requesting provider either verbally or in writing.