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Specialty RCM for internistsInternal Medicine
Internal Medicine
Billing Services
Internal medicine billing services manage the specialized coding, claim submission & payer compliance required for multi-problem E/M visits, chronic & principal care management, preventive services & in-office procedures. Revix MD provides internal medicine billing for U.S. practices, E/M leveling, CCM, TCM, PCM, Annual Wellness Visits, G2211 complexity billing & denial management, so your internists can focus on patients instead of payer rules.
A specialty with no simple visit
Why Internal Medicine Billing Is Different
Internists manage adults with multiple, overlapping conditions such as hypertension, type 2 diabetes, COPD, hyperlipidemia and chronic kidney disease. A single visit can involve several diagnoses, preventive screenings and care coordination between appointments and payers audit all of it closely.
CY 2026 updateMedicare Physician
Medicare Physician
Fee Schedule
−2.5% work RVU efficiency adjustment on most codes
CMS finalized the first split conversion factor in the fee schedule’s history for 2026, alongside a −2.5% work RVU efficiency adjustment applied to most codes. Time-based services, codes on the Medicare telehealth list, and maternity care are excluded from that adjustment.
For internal medicine, the cut lands directly on non-time-based procedures, EKG interpretation, spirometry and joint injections, while E/M visits billed by time and monthly care management codes stay largely insulated. We rebuild your fee schedule and coding priorities around both changes every year, not just once.
End-to-end RCM coverage
Internal Medicine Billing Services: Full Revenue Cycle Management
Our outsourced internal medicine billing services cover the full revenue cycle, from eligibility checks to final payment posting.
2025 and 2026 coding intelligence
Our Internal Medicine Coding Expertise
Accurate coding is the foundation of clean claims. Here are the code families we work in daily, including the additions that changed internal medicine billing in 2025 and 2026.
Office visits and care management
Service
Codes
What we watch for
Office visits, established patients
CPT 99213–99215
Level supported by MDM or total time; modifier 25 when billed with a preventive service
Office visits, new patients
CPT 99202–99205
Same MDM/time standard, distinct code set from established-patient visits
Visit complexity add-on
HCPCS G2211
Longitudinal relationship documented; billable same-day as an AWV with modifier 25; extended to home/residence visits in 2026
Transitional care management
CPT 99495, 99496
Contact within 2 business days of discharge; face-to-face visit within 14 or 7 days depending on complexity
Chronic care management
CPT 99490, 99439, 99487
Patient consent, care plan, two or more chronic conditions, monthly time thresholds
Principal care management
CPT 99424–99427
Single serious, high-risk chronic condition; cannot be billed the same month as CCM for the same patient
Advanced Primary Care Management
HCPCS G0556, G0557, G0558
13 service elements replace minute tracking; not billable alongside CCM, PCM or TCM in the same month — can pair with RPM
Medicare wellness visits
HCPCS G0438, G0439, G0402
Correct choice of initial vs. subsequent AWV; Welcome to Medicare visit within the first 12 months of Part B
Preventive visits, non-Medicare
CPT 99395–99397
Age-appropriate code for established patients; typically used with commercial payers
Chronic condition diagnoses
ICD-10 I10, E11, J44, E78, N18
Highest supported specificity, such as diabetes with CKD, and complete documentation of status
Procedures, remote monitoring and telehealth
Service
Codes
What we watch for
EKG interpretation
CPT 93000
Modifier 25 required on the E/M code when billed same day; subject to the −2.5% efficiency adjustment in 2026
Spirometry
CPT 94010, 94060
Medical necessity supported by diagnosis (J44, J45); pre/post bronchodilator distinction
Joint/trigger point injections
CPT 20600–20611
Site and laterality documentation; separate from the E/M unless modifier 25 applies
Skin biopsy/lesion removal
CPT range varies by method
Method (shave, punch, excision) and lesion count drive the correct code
Venipuncture
CPT 36415
Billed once per encounter regardless of draw count; bundling rules by payer
Immunization administration
CPT 90471–90474
Separate from the vaccine product code; age- and route-specific
Remote patient monitoring
CPT 99453, 99454, 99457, 99458
Device setup, 16-day data threshold and time logs; can layer with CCM, PCM or APCM
Telehealth E/M
POS 10, modifier 95, CPT 99441–99443
Place of service and modifier match the delivery method; audio-only codes for visits without video
Monthly and preventive care pathways
CCM, TCM, And Preventive Visit Billing For Internal Medicine
We align every patient with the correct Medicare pathway, documentation standard and timing rule—then keep overlapping services from colliding.
99490 · 99439
Chronic care management (CCM)
$0 standard setup fee for practices using our preferred EHR/PM systems. Complex data migrations or legacy system integrations are scoped individually.
99495 · 99496
Transitional care management (TCM)
We monitor discharge dates, contact windows and visit timing so 99495 and 99496 claims meet requirements and we flag conflicts when another provider may also bill.
99424–99427
Principal care management (PCM)
For patients with one serious, high-risk chronic condition advanced heart failure, complex diabetes, end-stage renal disease who don’t meet CCM’s two-condition threshold, PCM (CPT 99424–99427) is often the right monthly pathway. PCM and CCM cannot both be billed for the same patient in the same month, so we help you route each patient correctly.
99424–99427
Advanced Primary Care Management (APCM)
APCM launched in January 2025 as Medicare’s newest care management benefit, with 2026 reimbursement roughly 10% higher across its three tiers. Three HCPCS codes, G0556, G0557 and G0558, replace minute-by-minute tracking with 13 defined service elements. It cannot be billed alongside CCM, PCM or TCM in the same month, but it can pair with RPM. We help you decide, patient by patient, which pathway captures more of the care you’re already delivering.
G0438 · G0439 · G0402
Preventive visit billing under Medicare
Medicare coverage for preventive services includes the Annual Wellness Visit and screenings such as lipid, diabetes and cancer screenings under Part B. We match each service to the right code and diagnosis.
Same-day services, coded distinctly
In-Office Procedures And Modifier 25
Internal medicine visits routinely include more than the E/M code: EKG interpretation (93000), spirometry (94010, 94060), joint and trigger point injections (20600–20611), skin biopsies and lesion removals, venipuncture (36415), and immunization administration (90471–90474) are all billed alongside office visits.
When one of these is performed the same day as a separately identifiable E/M service, modifier 25 on the E/M code is what tells the payer the two services are distinct and it’s one of the most common places internal medicine claims get denied. These non-time-based procedure codes are also where the 2026 efficiency adjustment lands hardest, which makes clean modifier use a revenue issue as much as a compliance one.
25
Separate, significant E/M service
Clear documentation and correct modifier placement protect both compliance and reimbursement.
Connected care, clean claims
Telehealth And Remote Patient Monitoring
Medicare continues to cover telehealth E/M visits at parity with in-person care for most internal medicine services in 2026. We bill POS 10 for visits delivered to a patient at home, apply modifier 95 correctly and use the audio-only codes (99441–99443) when video is not an option. For chronic disease follow-up between visits, hypertension monitoring, glucose monitoring remote patient monitoring (CPT 99453, 99454, 99457, 99458) can be layered on top of CCM, PCM or APCM and we track device data, time thresholds and consent so it bills cleanly.
Scrub, correct, and learn
Denial Management For Internal Medicine Claims
Fewer denials with pre-submission claim scrubbing. We combine coder review with technology. Pre-submission checks flag common problems such as missing modifiers, diagnosis-to-service mismatches and incomplete CCM, PCM or TCM elements. When a claim is still denied, our team works it by root cause, corrects it, resubmits or appeals and feeds the pattern back into our front-end edits.
Your workflow, our standards
Epic, eClinicalWorks, Allscripts And The Standards Behind Every Claim
We work inside your existing workflow, integrating with EHR systems common in internal medicine: Epic, eClinicalWorks, Allscripts, athenahealth, AdvancedMD and NextGen. If your system is not listed, we evaluate compatibility during your free billing review. Claims follow ANSI 837P standards; we support HL7/FHIR-based data sharing where your systems allow it and all work follows HIPAA privacy and security requirements.
Our coding follows AMA CPT guidelines and CMS coverage and fee schedule rules; our coders hold AAPC certification and our documentation guidance for internists is informed by American College of Physicians (ACP) practice standards.
Standards behind every claim
Visibility that drives action
Internal Medicine Billing Metrics We Monitor
Every practice receives visibility into important revenue cycle performance indicators.
Specialty focus, operational clarity
Why Practices Choose Revix MD
A precise internal medicine billing partner should improve both financial performance and day-to-day confidence.
Structured transition
Our Internal Medicine Billing Onboarding Process
A controlled launch protects claim routing, cash flow continuity and reporting visibility while your Revix MD team takes ownership.
Free billing audit
We review recent claims, denials, A/R aging and coding patterns to identify improvement opportunities.
Workflow setup
We configure EHR access, billing workflows and payer requirements.
Go Live
Our team begins managing coding, claims, follow-ups and reporting.
Continuous optimization
Monthly reviews identify ways to improve collections and reduce denials.
A clearer path to better collections
Ready To Improve Your Internal Medicine Collections?
Request a free billing review and see where your practice may be losing revenue to coding errors, denials and unbilled care management services, CCM, PCM, TCM and APCM included.
Frequently Asked Questions
What do internal medicine billing services include?
They typically include eligibility verification, coding, charge entry, claim submission, payment posting, denial management, A/R follow-up and reporting. Revix MD also supports CCM, PCM, TCM, APCM and Annual Wellness Visit billing.
Why should I outsource internal medicine billing?
Outsourcing gives you specialty-trained billers and coders without the cost of hiring, training and managing an in-house team. It also helps reduce coding errors and speeds up follow-up on denied claims.
Can you bill CCM, PCM and TCM for our practice?
Yes. We help verify documentation requirements, monitor time thresholds, and submit CCM (99490, 99439), PCM (99424–99427) and TCM (99495, 99496) claims in line with current payer rules and flag when two of these can’t be billed for the same patient in the same month.
What is G2211 and does it apply to our visits?
G2211 is a Medicare add-on code for office and outpatient E/M visits (99202–99215) that recognizes the added complexity of an ongoing patient relationship. As of 2026, it also applies to home and residence E/M visits and it can often be billed the same day as an Annual Wellness Visit with modifier 25. We review your visit mix to identify where it’s being missed.
How is APCM different from CCM and PCM?
APCM (G0556–G0558) replaces minute tracking with a defined set of service elements and generally pays more per patient per month, but it can’t be billed alongside CCM, PCM or TCM for the same patient in the same month. We help you choose the program that fits each patient and captures the most appropriate reimbursement.
What is the difference between an AWV and a preventive visit?
The Medicare Annual Wellness Visit (G0438, G0439) is a Medicare-specific benefit. Preventive visit codes 99395–99397 are generally used for commercial payers. We apply the right code for each payer.
Do you work with our EHR?
We work with common internal medicine EHRs including Epic, eClinicalWorks, Allscripts, athenahealth, AdvancedMD and NextGen and can review other systems during your free billing review.
How much does internal medicine billing outsourcing cost?
Pricing depends on practice size, claim volume and services needed. Contact us for a custom quote after your free review.
