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Outsource Medical Coding Services

Our medical coding services help medical billing companies improve coding accuracy, reduce turnaround times, expand capacity, and support growing client demands with reliable, scalable, and HIPAA-compliant coding professionals.

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Global Footprint

4 Strategic Locations Across LATAM & APAC

Proven Clientele

400+ Clients Trust Our Outsourcing Solutions

Multilingual Support

Fluent in 10+ Languages for Seamless Communication

Industry Agnostic

Optimized Operations Across 20+ Sectors

Medical Coding Support That Solves Everyday Billing Challenges

Medical billing companies often outsource medical coding to manage increasing coding volumes, staffing limitations, and strict turnaround expectations. Our medical coding services integrate seamlessly with existing workflows, providing dependable support that helps maintain coding accuracy, improve productivity, and scale operations without the cost of expanding in-house teams.

Manage Coding Backlogs

Reduce outstanding coding work and keep claims moving efficiently.

Expand Team Capacity

Handle increasing client volumes without hiring additional full-time staff.

Improve Coding Accuracy

Support consistent CPT, ICD-10, and HCPCS coding to reduce errors.

Reduce Claim Denials

Minimize coding-related denials through accurate code assignment.

Meet Tight Turnaround Times

Deliver coding support that helps maintain timely claim submission.

Maintain Consistent Quality

Follow established coding guidelines and quality assurance processes.

Lower Operating Costs

Reduce recruitment, training, and staffing expenses while maintaining productivity.

Our Medical Coding Support Services

Our outsourced medical coding services provide reliable coding support for medical billing companies across a wide range of specialties.

CPT Coding

Assign accurate Current Procedural Terminology (CPT) codes for medical procedures and services to support proper claim submission and reimbursement.

ICD-10-CM Coding

Apply precise ICD-10-CM diagnosis codes based on clinical documentation to improve coding accuracy and reduce claim rejections

ICD-10-PCS Coding

Provide accurate ICD-10-PCS procedure coding for inpatient hospital services while following current coding guidelines and documentation standards.

HCPCS Coding

Assign appropriate HCPCS Level II codes for medical supplies, equipment, medications, and non-physician services to support complete claims.

Coding Review & Validation

Review coded records to identify discrepancies, improve coding consistency, and help minimize coding-related errors before claim submission.

Benefits of Outsourcing Medical Coding

Outsourcing medical coding helps medical billing companies improve operational efficiency, maintain coding quality, and scale resources without the challenges of recruiting and managing an in-house coding team.

Access Experienced Coding Professionals

Gain immediate access to skilled coding specialists without the time and expense of recruiting, onboarding, and training new employees.

Scale Resources on Demand

Increase or decrease coding capacity as client volumes change, helping your business adapt without long-term staffing commitments.

Focus Internal Teams on Core Operations

Allow internal teams to prioritize client management, revenue cycle operations, and business development while coding is handled by dedicated specialists.

Simplify Workforce Management

Reduce the administrative burden of hiring, scheduling, training, and retaining coding staff while maintaining consistent service delivery.

Support Business Growth

Take on new clients and larger coding volumes with confidence, knowing additional coding resources are available when needed.

Medical Specialties We Support

Our coding professionals support medical billing companies serving a wide range of specialties, delivering accurate coding aligned with specialty-specific documentation requirements.

Primary Care

Coding support for routine examinations, preventive care, chronic disease management, and office-based medical services.

Family Medicine

Accurate coding for comprehensive healthcare services provided to patients of all ages across diverse medical conditions.

Internal Medicine

Support for coding complex adult healthcare services, chronic conditions, diagnostic evaluations, and ongoing treatment management.

Cardiology

Coding assistance for cardiac consultations, diagnostic testing, interventional procedures, and cardiovascular treatment services.

Orthopedics

Coding support for musculoskeletal conditions, fracture care, joint procedures, sports injuries, and orthopedic surgeries.

Neurology

Accurate coding for neurological evaluations, diagnostic procedures, and treatment of disorders affecting the brain and nervous system.

Pediatrics

Coding services for preventive care, developmental assessments, childhood illnesses, immunizations, and pediatric treatments.

Dermatology

Support for coding skin examinations, biopsies, lesion removals, dermatologic procedures, and chronic skin condition management.

General Surgery

Coding assistance for inpatient and outpatient surgical procedures, pre-operative evaluations, and post-operative care.

Behavioral Health

Accurate coding for mental health assessments, therapy sessions, psychiatric evaluations, and behavioral healthcare services.

Urgent Care

Coding support for same-day visits, acute illnesses, minor injuries, and walk-in medical services.

Physical Therapy

Coding assistance for rehabilitation services, therapeutic exercises, manual therapy, functional assessments, and treatment plans.

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Trusted by Growing Businesses Worldwide

We’re proud to be the trusted partner behind so many success stories. Hear directly from the businesses that rely on our outsourcing solutions.

“What sets Callmax apart is their incredible responsiveness when things get tough. Anytime there’s an escalation or operational hiccup, their operations and client services teams are immediately on it proactive, composed, and solution-focused. We never feel like we’re left on our own. Their support is not just consistent it’s unwavering. That level of partnership is rare and deeply valued.”

Marcus L.

Director of Client Services, Confidential Company

“The Callmax team came in with a strong command of our systems Salesforce, our phone platform, and internal tools. Honestly, they knew the platforms better than some of our own staff. Their ability to plug in quickly, without disrupting our workflows or requiring lengthy training, made onboarding smooth and efficient. It felt less like outsourcing and more like adding seasoned pros to our team.”

Silvia T.

Owner

"When we first partnered with Callmax, we didn’t have formal training materials in place. Not only did their team step in and help us build a structured training library from scratch they used it to onboard their agents efficiently and consistently. The best part? We ended up adopting the same materials internally. Their initiative didn’t just support their team; it elevated our entire training process."

James Carter

Operations Manager, ClearPath Health

"From the start, Callmax made everything easy. The onboarding process was incredibly smooth clear timelines, responsive communication, and zero surprises. The contract was flexible, which gave me peace of mind as a smaller operation starting with just 10 FTEs. Honestly, I felt like I had more support and resources than I expected at that stage, which gave us the confidence and structure to scale the right way."

Daniel R.

Founder, StratusCX

"I’ll admit I was skeptical about outsourcing at first. But Callmax quickly changed that. Their structured approach, attention to detail, and professionalism stood out right away. They provided a clear BAA, emphasized data privacy from day one, and ran an impressively organized training and nesting process. It became clear these weren’t just agents they were experienced professionals who knew exactly what they were doing. That gave me real peace of mind."

Vince R.

COO, VitalBridge Care Services

Tools and Technologies We Use

Our coding team works with leading medical billing and healthcare platforms and can easily adapt to your existing software and coding workflows.

Kareo

Support medical coding workflows within Kareo to help maintain accurate documentation and efficient claim preparation.

CollaborateMD

Work seamlessly with CollaborateMD to support coding accuracy and smooth revenue cycle operations.

AdvancedMD

Provide coding support using AdvancedMD to improve coding consistency and streamline billing workflows.

EZ Claim

Assist with accurate code assignment and claim preparation through the EZ Claim platform.

Cerner

Review clinical documentation within Cerner to assign accurate CPT, ICD-10, and HCPCS codes.

Valant

Support behavioral health coding workflows using Valant while maintaining coding accuracy and compliance.

CharmHealth

Work with CharmHealth to support efficient coding processes for outpatient and multi-specialty practices.

AllegianceMD

Provide reliable coding support within AllegianceMD to help improve coding quality and operational efficiency.

TotalMD

Assist medical billing companies using TotalMD with accurate coding and timely claim processing.

Experity

Support coding for urgent care services through Experity using specialty-specific coding guidelines.

Practice Fusion

Review clinical documentation in Practice Fusion to ensure complete and accurate medical coding.

Athenahealth

Deliver coding support within Athenahealth to help maintain clean claims and consistent reimbursement workflows.

NextGen Healthcare

Provide coding services using NextGen Healthcare while following current coding standards and payer requirements.

Mobile MediClaim

Support coding and documentation workflows through Mobile MediClaim for efficient claims processing.

DocuTAP

Assist with urgent care coding requirements using DocuTAP to support accurate claim submission.

Our Medical Coding Process

Our proven medical coding process combines experienced professionals, quality assurance, and secure workflows to deliver consistent results for medical billing companies.

Understanding Your Requirements

We begin by reviewing your coding requirements, specialties, turnaround expectations, quality standards, and workflow to ensure a smooth onboarding process.

Secure Documentation Transfer

Clinical documentation and supporting records are securely received through your preferred systems while maintaining strict data security and confidentiality.

Accurate Medical Coding

Experienced coding professionals assign accurate CPT, ICD-10-CM, ICD-10-PCS, and HCPCS codes based on current coding guidelines and documentation.

Quality Assurance Review

Every coding assignment undergoes a comprehensive quality review to verify accuracy, consistency, and compliance before delivery.

 Timely Delivery

Completed coding files are delivered within the agreed turnaround time, ready to support your billing and claims submission process.

Ongoing Collaboration

Performance is continuously monitored, feedback is incorporated, and coding support is adjusted to meet evolving business and client requirements.

Understanding Your Requirements

We begin by reviewing your coding requirements, specialties, turnaround expectations, quality standards, and workflow to ensure a smooth onboarding process.

Secure Documentation Transfer

Clinical documentation and supporting records are securely received through your preferred systems while maintaining strict data security and confidentiality.

Accurate Medical Coding

Experienced coding professionals assign accurate CPT, ICD-10-CM, ICD-10-PCS, and HCPCS codes based on current coding guidelines and documentation.

Quality Assurance Review

Every coding assignment undergoes a comprehensive quality review to verify accuracy, consistency, and compliance before delivery.

Timely Delivery

Completed coding files are delivered within the agreed turnaround time, ready to support your billing and claims submission process.

Ongoing Collaboration

Performance is continuously monitored, feedback is incorporated, and coding support is adjusted to meet evolving business and client requirements.

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HIPAA-Compliant & Secure Coding Operations

Protecting sensitive healthcare information is at the core of our operations. Our coding workflows follow strict security and compliance standards to safeguard data and support reliable service delivery.

HIPAA-Compliant Workflows

Our medical coding processes are designed to support HIPAA requirements, helping protect protected health information (PHI) through secure data handling, privacy-focused practices, and controlled access.

SOC 2 Type II Aligned Security

Our operational controls are aligned with SOC 2 Type II security principles, supporting secure systems, data confidentiality, and reliable service delivery through established security practices.

Secure Data Management

Clinical documentation and coding files are handled using secure processes that help maintain data integrity and protect sensitive healthcare information throughout the coding lifecycle.

Role-Based Access Controls

Access to patient records, coding platforms, and client information is restricted to authorized personnel based on role-specific permissions.

Quality Assurance & Compliance

Every coding assignment undergoes quality reviews to verify coding accuracy, maintain consistency, and support compliance with current coding standards and client requirements.

Why Businesses Choose Callmax

Callmax provides scalable medical coding solutions designed to help medical billing companies maintain coding accuracy, meet turnaround expectations, and deliver exceptional client service.

  • Experienced Medical Coding Team

    Our coding professionals apply current coding standards and specialty-specific expertise to deliver accurate CPT, ICD-10, and HCPCS coding.

  • Quality-Driven Approach

    Every coding assignment follows a structured quality assurance process to help maintain accuracy, consistency, and compliance.

  • Fast Turnaround Times

    Efficient workflows and dedicated resources help meet turnaround expectations while supporting timely claim submission.

  • HIPAA-Compliant & Secure Operations

    Our coding workflows follow HIPAA requirements and SOC 2 Type II aligned security practices to help safeguard sensitive healthcare information.

  • Dedicated Account Management

    A dedicated point of contact ensures clear communication, efficient coordination, and responsive support throughout the engagement.

Trusted by 400+ Businesses

About Us

Callmax, founded in New York in 2012, was created to empower small and mid-sized businesses to compete in industries dominated by large corporations by providing scalable, cost-effective operational support. As a Business Process Outsourcing (BPO) provider, Callmax streamlines operations through services such as customer support, data management, and industry-specific solutions, acting as an extension of clients’ teams to enhance efficiency, adaptability, and growth.

24/7

Support Coverage

94%

Client Retention Rate

Frequently Asked Questions

What is medical coding outsourcing?

Medical coding outsourcing is the process of partnering with an external coding team to assign accurate CPT, ICD-10, and HCPCS codes based on clinical documentation, helping medical billing companies manage workloads efficiently.

What documents are required for medical coding?

Medical coders typically require complete clinical documentation, including physician notes, operative reports, diagnostic reports, discharge summaries, and other supporting medical records.

Can medical coding services support multiple specialties?

Yes. Medical coding teams can support a wide range of specialties, provided they have experience with specialty-specific coding guidelines and documentation requirements.

What is the difference between medical coding and medical billing?

Medical coding involves translating clinical documentation into standardized codes, while medical billing uses those codes to prepare and submit claims for reimbursement.

How often are coding guidelines updated?

Coding guidelines are updated regularly. Coding professionals stay informed about changes to CPT, ICD-10-CM, ICD-10-PCS, HCPCS, and payer-specific requirements to maintain coding accuracy.

Can coding support be provided for both inpatient and outpatient services?

Yes. Medical coding services can cover both inpatient and outpatient encounters, depending on your business requirements and the specialties you serve.

What factors affect medical coding accuracy?

Coding accuracy depends on complete clinical documentation, current coding guidelines, specialty expertise, quality assurance processes, and clear communication when documentation requires clarification.

Can coding services help during periods of increased workload?

Yes. Additional coding resources can help manage seasonal demand, coding backlogs, client onboarding, or temporary staffing shortages without disrupting daily operations.

How is protected health information kept secure during the coding process?

Protected health information is safeguarded through secure workflows, role-based access controls, encrypted data handling, confidentiality policies, and compliance with healthcare security standards.

How quickly can medical coding services be implemented?

Implementation timelines vary based on workflow complexity, software requirements, and project scope. After onboarding, coding support can typically begin once system access and processes are established.

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Let's Support Your Growing
Coding Needs

Expand your coding capacity without disrupting daily operations. Our experienced coding professionals help maintain accuracy, consistency, and efficiency as your business grows.

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