Skip to content Credex Healthcare is a premier billing service for infectious disease practices, including epidemiology groups, HIV/AIDS treatment centers, ambulatory diagnostic clinics, and hospital-based microbiology labs. We target the unique challenges of infectious disease billing, such as missed revenue from complex visits, overlooked outpatient parenteral antimicrobial therapy (OPAT) coordination, and incomplete lab result documentation, all of which can lower reimbursement for each patient visit.
Our end-to-end infectious disease billing management service covers everything from daily patient census checks and procedure charge capture to claim submission, denial resolution, and payment posting for all infectious disease practitioners who need our services.
First-pass claim approval rate
Average infectious disease billing turnaround
Medicare, Medicaid & commercial networks
OPAT coordination & lab interpretation review
Credex Healthcare applies an integrated approach to infectious disease billing by auditing all laboratory and clinical documentation before charges are entered. Our team ensures that vaccine administrations and other services meet CPT code requirements for each unit billed, including codes 99213, 99214, 99215, and 99441. We make certain that all separately billable bedside procedures are identified, correctly coded in conjunction with E/M visits, and that time exclusions are accurately applied per CMS guidelines. A comprehensive review of the physician’s note verifies the necessity and complexity required for infectious disease billing. Because infectious disease patients are often medically fragile, any billing error, such as missed procedures or underreported time, can result in significant cumulative revenue loss across the patient population.
Our infectious disease medicine billing services in the USA cover the following:
We manage payer enrollment for infectious disease physicians, epidemiologists, and APPs, working with Medicare, Medicaid, and commercial plans. This includes configuring hospital-employed provider billing and setting up group NPIs for infectious disease practices.
Any denied infectious disease claim is reviewed within 48 hours. Our experts resolve issues including incomplete time documentation, incorrect bundling of procedures with E/M visits, medical necessity disputes, or same-day billing conflicts, ensuring each is resubmitted with proper supporting documents.
Certified coders audit infectious disease documentation using CPT codes such as 99213, 99214, 99215, 99441, and others specific to infectious disease, verifying that time is properly recorded, exclusions applied, and all separately billable procedures are coded in line with CMS and payer policies.
Procedures such as HIV/STI management, OPAT management, infectious and culture testing, among others, are frequently underbilled or overlooked in infectious disease billing. To address this, a daily charge-capture review is at the core of our workflow to ensure accurate code and claims submission.
As a leading infectious disease billing provider across the States, Credex Healthcare keeps up to date with Medicare and CMS infectious disease billing rules, commercial payer policy changes, and evolving documentation requirements for infectious disease services. We ensure compliance with the latest standards for CPT codes, including 99213, 99214, 99215, and 99441, across all MAC jurisdictions. Medicare reimbursement requires that the physician documentation establishes direct patient care, high-complexity decision-making, and that the total infectious disease time meets the required thresholds. Mistakes in applying these requirements—even on a moderate-sized infectious disease census—can lead to significant revenue loss.
Medicare reimburses infectious disease services when documentation showcases direct physician engagement, complex decision-making, and cumulative daily time meeting CPT code thresholds. We oversee Medicare infectious disease billing nationwide, ensuring proper time tracking, appropriate exclusions, and compliance with documentation standards.
Medicaid infectious disease billing policies differ by state, often featuring specific time thresholds and documentation criteria that may not align with Medicare. Our staff keeps current with each state’s Medicaid infectious disease billing requirements to ensure every claim meets the appropriate standards and maximizes reimbursement.
Billing for infectious disease-specific procedures, such as incision and drainage of abscesses, wound care for infectious complications, and advanced specimen collection, requires precise documentation and categorization. Our infectious disease billing specialists ensure that all eligible procedures are properly identified, coded, and billed separately from E/M services, in strict accordance with CMS and payer rules.
Billing requirements for infectious disease services are distinguishable between hospital-based programs and community or outpatient practices. We customize the billing workflow to reflect the structure of your infectious disease team, ensuring that the correct NPI is used, all inpatient and outpatient E/M services are accurately captured, and revenue is distributed appropriately by site and provider. Our expertise ensures seamless integration between hospital and practice billing, supporting both compliance and maximized collections.
Infectious disease claims may be denied for reasons such as incomplete time documentation, improper bundling of bedside procedures with E/M visits, same-day billing conflicts, or insufficient evidence of complex medical decision-making in the provider note. Credex Healthcare screens for each of these pitfalls prior to claim submission.
Active enrollment, correct specialty taxonomy, and hospital privileges before any claims are submitted by infectious disease practitioners through their NPI and CAQH credentials, ensuring compliance and seamless billing.
We verify that clinical notes detail infectious disease time to the minute for accurate billing with codes such as 99213, 99214, 99215, and 99441. Activities such as teaching or working on separately billable procedures are excluded from total billable time, ensuring every unit is supported by documentation.
For infectious disease services billed under CPT codes 99213, 99214, 99215, and 99441, procedures directly related to infectious disease management, such as complex wound care for infections, incision and drainage of abscesses, and specialized specimen collection for microbiological analysis, must be billed separately from the primary E/M service when not bundled. Our team carefully reviews documentation to identify all eligible infectious disease procedures and ensures they are coded and billed accurately in accordance with CMS and payer requirements, optimizing reimbursement for comprehensive infectious disease care.
Infectious disease billing requires that the physician's documentation establish that the patient's condition poses an imminent or life-threatening threat and that the physician engaged in high-complexity medical decision-making. We review each note for clinical language that meets that standard before submitting the claim.
Accounts Receivable Follow-Up
Infectious disease AR is reviewed weekly. Unpaid infectious disease claims are pursued before the time limits for timely filing close. Time unit underpayments are checked against the Medicare fee schedule, and procedure code denials are escalated with the procedure documentation and the payer policy supporting separate billing.
Infectious disease programs lose revenue through three billing patterns that repeat daily across the census. Infectious disease notes documenting total time at the bottom of a template, without accounting for excluded activities, resulted in 1 unit being billed when 2 were actually earned. Bedside procedures were entered in the chart but never captured in the billing queue because the procedure charge-capture workflow does not pull from the infectious disease documentation system. Same-day infectious disease billing conflicts with the surgical team, which nobody catches until the remittance comes back with a denial. Credex Healthcare’s infectious disease billing process builds the checks for all three into the daily billing workflow.
End-to-end infectious disease insurance billing from daily census reconciliation and infectious disease time verification through procedure code assignment and electronic submission to all payers for primary E/M visits and specialized infectious disease procedures.
Our infectious disease billing specialists apply the correct infectious disease billing codes and time-based units for every encounter, reducing denials caused by documentation requirements and time calculation errors.
Procedure Charge Capture
Our integrated charge-capture workflow ensures that select infectious disease-specific procedures undergo accurate identification, coding, and submission in compliance with CMS and payer guidelines, maximizing reimbursement for all services provided.
Denial management for infectious disease claims covers time documentation disputes, procedure code bundling corrections, medical necessity appeals for infectious disease level, and same-day billing conflict resolutions. Each appeal is built around the clinical note and CMS policy that reverses the denial.
Provider application management covers initial enrollment for epidemiologists and infectious disease APPs, hospital-employed physician billing configuration, group NPI setup, and recredentialing, ensuring your billing department performs its mandate without interruption as staff changes or payer agreements renew.
Monthly reports cover collections by provider and payer, infectious disease time-unit distribution, procedure billing capture rate, denial trends by CPT code, infectious disease billing turnaround time, and AR aging, so infectious disease medical directors have the data to manage the program's financial performance.
Years of Infectious Disease Billing Expertise
Provider Enrollment & Credentialing Success
Claim Compliance Rate Across All Payers
Support Available for All Your Needs
Customized Infectious Disease Revenue Cycle Solutions
MD
Liz
“Our infectious disease center receives the majority of chemistry panels in the entire state of Louisiana every month, but coding errors were our mainstay issue. Credex reviewed three months of notes and found that about 35% of our census days had documented time that corresponds to a specialized unit, but we overlooked it. Monthly infectious disease collections improved significantly, and it has never been the same since.”
MD
Khaleed
“Our billing team was admittedly undertrained to apply various modifiers to specify complexity of infectious disease service, which always results in denials. Credex came to identify the root cause, establish a workflow that works, and change how we approach and process appeals.”
RCM Specialist
Veronica
“Our epidemiologists administer vaccines, perform laboratory panels, and lead OPAT management, but none of those procedures were billed properly. The charge capture system was not integrated with the infectious disease documentation workflow. Credex’s audit showed that only 45% are charge-captured. They fixed the charge capture mechanism, trained the billing staff in analyzing infectious disease notes, and billing revenue increased by 20% in the next quarter.”
MD
Nwosu
“HIV testing is specialized, and it requires different tests that correspond to various CPT codes. My previous billing company only had a general CPT code for this kind of testing. Credex came to the rescue by correcting the coding. Reimbursement has improved since then.”
CFO
Chinwa
“Our microbiology lab is scattered in different locations and the billing inconsistency across sites was pretty obvious. Credex standardized the charge capture and billing process across all of them, built a monthly report that categorizes billing for infectious and culture testing, for us to know that there are sites who are underbilling.”
Practice Assessment
We conduct a comprehensive audit of your current infectious disease billing processes, with a focus on infectious disease-specific time documentation, daily census reconciliation, procedure charge capture for infectious disease-related services, accounts receivable aging by payer, and denial trends by CPT code and reason. This audit pinpoints revenue loss areas and identifies pain points to be prioritized.
Credentialing & Payer Enrollment
All infectious disease practitioners undergo active enrollment verification with each payer, correct specialty taxonomy, and hospital privileges status. Hospital-employed physician billing is configured accordingly to the practice structure, ensuring claims are always submitted from the applicable entity.
Charge Capture & Documentation Optimization
We evaluate the infectious disease documentation workflow, identify gaps between clinical documentation and the billing queue for both infectious disease time and bedside procedures. A daily charge-capture review process is implemented, so no billable service is detected.
Clean Claim Submission
Our billing specialists meticulously verify time units against the clinical record, apply appropriate time exclusions, ensure all eligible procedures are professionally performed, identify same-day billing conflicts, and submit claims electronically to all payers for all E/M visits.
Denial Management & Follow-Up
Every claim is tracked through adjudication. Denials are reviewed within 48 hours, with targeted responses for time-documentation disputes, procedure-bundling corrections, global surgery period modifier errors, and medical-necessity appeals, in accordance with the clinical note and payer policy.
Reporting & Ongoing Optimization
Monthly reports provide detailed analysis by provider and payer, infectious disease time-unit distribution, procedure charge capture rate, denial trends by CPT code, infectious disease billing turnaround time, and AR aging. Patterns that generate recurring denials are directly addressed at the clinical workflow level.
Infectious disease billing is highly specialized, requiring time-based, procedure-heavy, and documentation rules that must be addressed meticulously. Credex Healthcare focuses on infectious disease medicine billing specifically because this requires specialists who work on infectious disease claims daily and understand the governed rules in a clinical and diagnostic environment.
Our team specifically manages infectious disease claims. We are experts in Medicare's documentation and exclusion criteria for E/M codes 99213, 99214, 99215, and 99441, as well as in the proper separation and billing of infectious disease-specific services. We proactively manage same-day billing conflicts and systematically identify the billing pain points in documentation and errors in charge capture workflows.
You coordinate with a dedicated infectious disease billing specialist who understands your infectious disease team, payer panel, procedure mix, and recurring billing patterns in your claims. It is ensured that your program’s operational and clinical needs are met by an assigned specialist.
Infectious disease billing specialists receive actionable results in metrics, including collections by provider and payer, infectious disease time unit distribution across the census, procedure billing capture rate, denial trends by CPT code, and infectious disease billing turnaround time in monthly reports that enables data-driven enforcement of crucial decisions in financial performance of practices.
All infectious disease records, procedure notes, and patient documentation undergo strict HIPAA compliance protocols. Documented security standards and strict access controls are maintained within an established workflow to process your claims.
Infectious disease programs face preventable revenue loss due to recurring billing errors. These include erroneous calculation of time-based services for codes like 99213, 99214, 99215, and 99441, failing to exclude non-billable activities, missing documented but uncaptured infectious disease-related procedures, and unresolved same-day billing conflicts with other specialties that result in claim denials. Credex Healthcare’s audit process uncovers these issues early and quantifies their cumulative impact on your financial performance.
Credex Healthcare offers a complimentary review of your infectious disease billing practices, including daily census reconciliation, time documentation for E/M services, procedure charge capture, accounts receivable aging by payer, and denial analysis by CPT code. This no-obligation assessment reveals recoverable revenue and helps in suggesting workflow improvements to eliminate ongoing losses.
Infectious disease billing involves submission of claims for services provided by infectious disease specialists, epidemiologists, and microbiologists to patients with infectious or immunocompromised conditions. This billing follows a time-based approach, requiring the physician to document the total time spent delivering infectious disease care to each patient on each calendar day. This approach must meet the defined thresholds for the CPT codes being billed, such as 99213, 99214, 99215, and 99441, to ensure first-time approval and hassle-free reimbursement.
Infectious disease billing primarily is categorized on evaluation and management (E/M) time-based codes: CPT 99213, 99214, and 99215 for office or outpatient visits, and 99441 for telephone E/M services. Procedural cases, such as incision and drainage, wound care for infectious complications, and advanced specimen collection are typically billed separately when not bundled with the primary E/M code, under the condition that there is a supporting documentation for additional services.
Yes. Commercial and government insurers, such as Medicare Part B and Medicaid, allow coverage for infectious disease services when medical necessity is supported by the physician’s documentation, showing both direct care and the complexity of the patient’s infectious condition. Medicare reimburses for infectious disease E/M codes, such as 99213, 99214, 99215, and 99441, when documentation reflects high-complexity decision-making and the required time thresholds.
Medicare usually pays infectious disease claims within 14 to 30 days if time documentation is accurately met, and procedures are appropriately categorized in isolation from E/M codes. Commercial payers typically reimburse within 30 days when high-complexity decision-making is documented, and time units are accurate. Medicaid processing times vary by state, typically 30 to 60 days. Credex Healthcare proactively reviews all claims for accuracy and compliance, optimizing billing to meet reimbursement timelines.
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