Medical Billing and Coding Certification Guide: CBCS vs CPC vs CCA

Why the Right Credential Matters in Medical Billing

Medical billing and coding is one of the most credential-conscious fields in allied health. Employers use certifications as the primary filter when hiring, and different practice settings often have strong preferences for specific credentials. Choosing the wrong certification is not fatal — you can always add another later — but it can mean additional time and money if your credential does not match the expectations of your target employers.

Three certifications dominate the entry-to-mid-level billing and coding job market: the CBCS (NHA), the CPC (AAPC), and the CCA (AHIMA). Here is how they compare.

The Three Certifications at a Glance

Understanding the Difference in Scope

CBCS (NHA) covers the fundamentals of billing and coding for physician office and outpatient settings. It is a broad foundational credential rather than a deep specialty certification. It covers ICD-10-CM diagnosis coding, CPT procedure coding, HCPCS Level II codes, insurance claims processing, reimbursement cycles, and compliance concepts. It is typically the fastest and most affordable entry point into the billing and coding field.

CPC (AAPC) is the most widely held professional coding certification in the United States. It is focused on physician-based and outpatient coding and is the standard credential for coders working in physician practices, ambulatory surgery centers, and outpatient departments. The exam is open book (you bring your CPT, ICD-10-CM, and HCPCS Level II codebooks), which is both an advantage and a test of whether you can use the books effectively under timed conditions. The CPC is the gold standard for ambulatory/physician coding roles.

CCA (AHIMA) is the American Health Information Management Association's entry-level credential. AHIMA is the professional organization for health information management (HIM) — the field that encompasses medical coding, health records, privacy compliance, and data management. The CCA is more oriented toward hospital and facility coding than the CPC. It is a common credential for entry-level hospital medical records and coding positions.

Who Each Certification Is Best For

Choose CBCS if:

• You are new to the billing and coding field and want an accessible entry point
• You have a CCMA or other clinical MA credential and want to add billing competency to broaden your practice value
• You work (or plan to work) at a small to mid-size physician practice where billing staff handle both clinical-support and administrative-coding responsibilities
• You want the lowest exam cost and the NHA ecosystem's two-year renewal structure

The CBCS is the most natural fit for medical assistants expanding into billing and coding, because NHA already covers the clinical side. Adding the CBCS brings together both sides of a practice's operations under a single credentialing body.

Start practicing with CBCS practice questions to benchmark your current billing and coding knowledge before committing to a study plan.

Choose CPC if:

• You want a widely recognized credential for dedicated coding roles at physician practices, ambulatory centers, or specialty clinics
• You are comfortable with using coding manuals under timed conditions and are willing to invest in open-book preparation
• You want to eventually specialize in a particular coding area (AAPC offers specialty certifications in cardiology, E/M coding, risk adjustment, etc. that build on the CPC)
• Your target employers specifically list CPC as preferred or required

The CPC is the right choice if your goal is a dedicated coding career rather than a hybrid MA/billing role. The open-book format means exam preparation is different — you need to know how to find the right code efficiently, not just recognize correct answers from memory.

Choose CCA if:

• You want to work in hospital medical records, health information management, or facility billing
• You are interested in HIM roles that extend beyond coding into records management, data integrity, and privacy compliance
• Your target employers are large hospital networks that prefer AHIMA credentials for their HIM departments
• You eventually want to progress to the Registered Health Information Technician (RHIT) credential, which is AHIMA's mid-level credential

The ICD-10 and CPT Overlap

All three certifications require knowledge of ICD-10-CM diagnosis coding and CPT procedure coding. This means preparation materials, study time, and foundational knowledge overlap significantly — learning ICD-10 for the CBCS helps you with the CPC and vice versa.

The practical implication: if you pass the CBCS and later decide you want the CPC, a significant portion of your preparation transfers. You are not starting from scratch.

Medical Billing vs. Medical Coding: Is There a Difference?

In everyday job postings, "billing" and "coding" are often used interchangeably, which causes confusion when choosing a credential. In practice, billing and coding are related but distinct tasks:

Medical coding is the process of translating clinical documentation (diagnoses, procedures, supplies) into standardized codes (ICD-10, CPT, HCPCS). It requires understanding clinical terminology, anatomy, and the official coding guidelines.

Medical billing is the process of submitting claims to insurance payers and following up on payment. It requires understanding insurance plan structures, claims processes, denial management, and reimbursement.

Most entry-level positions involve both. The CBCS credential covers both billing and coding fundamentals. The CPC and CCA are primarily coding credentials, though working coders understand billing processes as part of the revenue cycle.

Salary Expectations

Entry-level billing and coding salaries typically range from $36,000 to $46,000. Experienced coders with specialty certifications or in high-cost-of-living markets can earn $55,000 to $70,000 or more. Remote billing and coding positions are among the most available in allied health, making this a field where geographic flexibility significantly expands your options.

AHIMA and AAPC data consistently shows that certified coders earn more than non-certified billing staff — often $8,000 to $12,000 more per year — which means any of the three certifications pays for itself within weeks.

Making the Decision

For most people entering medical billing and coding from a medical assisting background, the CBCS is the right first step. It is accessible, affordable, specifically designed for the MA-to-biller career path, and compatible with NHA's broader credentialing ecosystem.

If you already have a CCMA and are weighing your next move, adding the CBCS as a second NHA credential is one of the clearest salary-and-scope investments you can make. One subscription to AH Prep covers both the CCMA and CBCS practice banks — you do not need to buy separate study materials for each exam.

Practice CBCS exam questions free and see where your billing and coding knowledge currently stands.