Medical coding certifications are exam-based credentials issued by bodies such as AAPC, AHIMA and NHA — earned by passing a credentialing exam, not handed out for finishing a course.
AAPC names the CPC, COC, CIC and CRC as its four main core coding certifications, with the CPB for billers; AHIMA's list runs from the CCA — a high school diploma is its only requirement — through the CCS to the degree-based RHIT and RHIA.
This guide maps every credential and the work each one fits.
What does it mean to be a certified medical coder?
A certified medical coder has passed a credentialing exam run by a professional certifying body and keeps that credential current with continuing education.
The credential is earned, not issued: AHIMA's own CCA materials draw the line, treating training-program certificates as recommended preparation and the certification itself as something you earn by passing the exam.
That distinction matters when you compare courses and programs.
A school certificate shows course completion, while credentials like the CPC, CCA and CBCS are granted by AAPC, AHIMA and NHA only after their exams.
The exams test job knowledge — the code sets and rules a coder uses daily.
AAPC says the CPC validates knowledge of ICD-10-CM, CPT and HCPCS Level II across outpatient and physician services.
Keeping a credential current is part of the deal.
AAPC requires 36 CEUs every two years for one certification, scaling upward for coders who hold several.
AHIMA recertifies on a two-year cycle with 20 CEUs for its coding credentials (CCA, CCS, CCS-P and RHIT) and 30 for RHIA, CDIP, CHPS and CHDA.
A certification is a credential, not a license.
AHIMA's candidate guide calls taking its exam voluntary, while BLS reports that certification may be required or preferred in the occupation.
New to coding entirely?
The role itself — the daily work, the settings and the career ladder — is covered in the medical coder career guide.
Which organizations certify coders (AAPC, AHIMA, NHA and others)?
AAPC — founded in 1988 as the American Academy of Professional Coders — says its network now includes more than 300,000 professionals.
Its core coding certifications are the CPC, COC, CIC and CRC, with the CPB for billers; AAPC calls the CPC, and the CPC paired with the CPB, the most popular first choices.
Core exams cost $425 for one attempt or $499 for two as of October 13, 2026, and AAPC specialty exams cost $325 or $399.
Beyond the core sit a long list of specialty credentials — for example the CEDC for emergency department coding, the CEMC for evaluation and management, and surgical credentials such as the CGSC (general surgery), the COSC (orthopaedic surgery) and the CASCC (ambulatory surgery center).
AHIMA takes a different shape: as of October 13, 2026 its credential list runs to eight — CCA, CCS, CCS-P, RHIT, RHIA, CDIP, CHDA and CHPS.
Its certifications are administered by CCHIIM, AHIMA's Commission on Certification for Health Informatics and Information Management.
Delivery matters when you plan an exam trip.
AHIMA's coding and HIM exams (CCA, CCS, CCS-P, RHIT and RHIA) must be scheduled at a Pearson VUE testing center, and only CDIP, CHPS and CHDA offer at-home remote proctoring.
Book rules are strict too: exams on or after May 1, 2026 require the 2026 code books from AHIMA's list.
That rule appears on AHIMA's CCA, CCS and CCS-P exam pages, and candidates who arrive without the correct books cannot test and forfeit the fee.
NHA's Certified Billing and Coding Specialist (CBCS) is the combined billing-and-coding credential.
NHA's eligibility is a high school diploma or GED (or one due within 18 months) plus a billing and coding training program completed within the last 5 years.
Supervised billing and coding work experience can substitute: 1 year within the last 3, or 2 years within the last 5.
NHA's 2021 CBCS test plan puts 100 scored items plus 25 pretest items in three hours, spread across coding, billing and reimbursement, insurance eligibility, and revenue cycle and compliance domains.
The CBCS can be taken at a school, at a PSI testing center or by live remote proctoring, and NHA states that all of its certification programs, including the CBCS, are accredited by the NCCA.
Around the coder-specific bodies sit credentials for adjacent revenue-cycle roles, included here so the map is complete.
ACDIS's Certified Clinical Documentation Specialist (CCDS) requires candidates to currently work in CDI.
Qualifying routes: an RN, RHIA, RHIT, MD or DO with 2 years of inpatient (IPPS) CDI experience, or an allied-health associate degree, qualifying coursework or a CCS or CCS-P with 3 years.
HFMA's Certified Revenue Cycle Representative (CRCR) covers the revenue cycle broadly, with a 75-question, 90-minute assessment and a 70% passing score; HFMA recommends 1 or more years of revenue cycle experience.
AMBA's CMRS is a billing credential: an open-book online exam of 16 sections requiring 694 answers, completed within 45 days, with 85% needed to pass.
AAHAM's CRCS is a two-hour online proctored exam with sections for patient access, billing, and credit and collections, requiring 70% to pass.
Smaller vendors round out the coding-and-billing map.
AMCA's medical coding and billing credential is the MCBC (Medical Coder and Biller), renamed from the BCSC on May 11, 2018 and offered online or on paper.
BMSC — the Board of Medical Specialty Coding, now under AHCC/DecisionHealth — states that testing for new candidates is not available; its existing SCP, ACS and CCP-P holders recertify with 20 CEUs per year.
Another vendor we tried to check, Practice Management Institute (PMI), could not be retrieved when we researched this guide, so its credential details are not covered here.
Exam rules, fees and eligibility change
Entry-level vs advanced coding certifications
The coding credentials split into an entry tier and an advanced tier, and the difference is eligibility and depth.
AHIMA's Certified Coding Associate (CCA) opens with a high school diploma — the only requirement — and 6 months of coding experience or completion of a coding training program is recommended, not required.
The CCA exam runs 105 questions (90 scored, 15 pretest) in two hours, with no going back to earlier items; it cost $199 for AHIMA members and $299 for non-members as of October 13, 2026.
AAPC's Certified Professional Coder (CPC) is open at the door too: no degree or work experience is required to sit, though AAPC recommends 2 years of field experience.
The exam runs 100 questions in four hours.
Passing the CPC without 2 years of verified coding experience earns the apprentice designation, CPC-A, and under AAPC's exam agreement the A applies only to the CPC and COC exams.
AAPC lists four ways to remove the A: 2 years of coding employment, 1 year plus education, Practicode plus an 80-hour course, or its Job-Ready program.
AAPC says CPC-As qualify for entry-level roles such as coding trainee, billing and coding specialist and prior authorization specialist.
The advanced tier assumes depth.
AHIMA's Certified Coding Specialist (CCS) has no required eligibility either, but its recommendations — 2 years of coding experience, or a CCA plus a year, among others — signal where the exam sits.
AHIMA describes the CCS as mastery-level coding generally in the hospital setting, and under AHIMA's 2026 credential hierarchy the CCS or CCS-P replaces the CCA once passed.
The RHIT and RHIA are degree-gated: the Registered Health Information Technician (RHIT) requires an associate-level HIM program accredited by CAHIIM, while the RHIA requires a CAHIIM-accredited bachelor's or master's, or an approved post-baccalaureate certificate.
AHIMA frames RHIT as roughly a 2-year academic route and RHIA as a 4-year route.
AHIMA's CDIP (Certified Documentation Integrity Practitioner) accepts an associate degree or higher, an approved post-baccalaureate certificate, or a CCS, CCS-P, RHIT or RHIA, with 2 years of CDI experience recommended.
AAPC's advanced options work differently: the CPMA, CPCO, CPPM, CRC, CIC, CPB and its specialty credentials are stand-alone — none requires holding a CPC, COC or CPC-P credential first.
AAPC recommends at least 2 years of coding experience for the CPMA (Certified Professional Medical Auditor), and an existing coding certification plus 2 years of experience for the CDEO (Certified Documentation Expert-Outpatient).
Which certification fits pro-fee, facility, risk adjustment or audit work?
Match the credential to the records you want to code, because each one validates a different slice of the work.
Professional-fee coding — physician offices, group practices and their clinic services — is the CPC's home: AAPC says the CPC validates coding across outpatient and physician services, covering ICD-10-CM, CPT and HCPCS Level II.
AHIMA's physician-based counterpart is the CCS-P, which AHIMA describes for offices, group practices and clinics.
Hospital outpatient facility coding — same-day surgery, emergency department visits and hospital outpatient clinic services — belongs to AAPC's Certified Outpatient Coder (COC), the credential formerly known as the CPC-H.
Inpatient facility coding is AAPC's Certified Inpatient Coder (CIC), which covers ICD-10-PCS procedure coding and ICD-10-CM diagnosis coding for hospitals; its exam pairs 40 multiple-choice questions with 7 inpatient cases answered by fill-in.
AHIMA's hospital-side credential is the CCS, covering mastery-level coding generally in the hospital setting across inpatient and outpatient scenarios.
Risk adjustment coding has its own credential: the CRC (Certified Risk Adjustment Coder) focuses on the ICD-10-CM diagnosis codes that risk adjustment work runs on.
Audit work maps to AAPC's CPMA, a 100-question, four-hour open-book exam for which AAPC recommends at least 2 years of coding experience.
The CDEO sits nearby on the documentation side; AAPC recommends 2 years of experience and an existing coding certification before attempting it.
Two adjacent paths borrow the same foundation.
Billers test through the CPB (Certified Professional Biller), which covers insurance plan types, the claim life cycle, denial resolution, HIPAA, the False Claims Act and coding.
Clinical documentation integrity professionals move to AHIMA's CDIP, which recommends 2 years of CDI experience on top of a degree or base credential, or ACDIS's CCDS, which requires current CDI work.
- Physician and pro-fee coding → CPC (AAPC) or CCS-P (AHIMA)
- Hospital outpatient facility → COC (AAPC, formerly CPC-H)
- Hospital inpatient facility → CIC (AAPC) or CCS (AHIMA)
- Risk adjustment coding → CRC (AAPC)
- Coding audit → CPMA (AAPC)
- Clinical documentation integrity → CDIP (AHIMA) or CCDS (ACDIS)
- Medical billing → CPB (AAPC)
Do employers require certification to hire coders?
BLS's entry profile for medical records specialists — the occupation that contains coding — says certification may be required or preferred, and that medical records specialists typically need a postsecondary certificate, although some qualify with a high school diploma.
BLS adds that employers may prefer to hire certified applicants, or may expect them to earn certification shortly after being hired.
AAPC, speaking about its own credential market, says certification and training are typically preferred by employers and usually open up more job opportunities.
Weigh those statements with their sources in mind: BLS describes the occupation, while AAPC describes the market for AAPC certification.
AHIMA's candidate guide calls taking its exam voluntary.
One more distinction keeps the picture straight: a certification is a credential, not a license.
On pay, AAPC's own salary data reports that coders holding just one certification made 12.5% more than non-certified peers over the last two years.
That is an AAPC survey figure, separate from BLS's wage tables, which sit on the medical coder salary page.
How to choose and what comes next
Choose by the records you want to code and the eligibility you already meet, not by abbreviation recognition.
Just starting out, the two entry points AAPC itself names are the CPC and the CPC paired with the CPB — its most popular first choices.
AHIMA's CCA is the parallel option on the AHIMA side, where a high school diploma is the only requirement to sit.
Costs, as of October 13, 2026: AAPC core exams run $425 for one attempt or $499 for two; AHIMA's CCA runs $199 for members and $299 for non-members; the CCS runs $299 for members and $399 for non-members.
AAPC also requires active membership to sit for its exams and to keep a credential active, so budget for membership alongside the exam.
On timing, AAPC says most people complete its CPC coursework and pass the exam in 4 to 8 months.
After the credential, the sequence is familiar: remove an apprentice A if you carry one, work the entry roles AAPC says CPC-As qualify for, then add depth — a facility or specialty credential, audit, CDI or management.
When you are ready to use the credential, browse medical coder jobs to see how employers phrase certification requirements in live postings.
Career information, not coding, billing-compliance, legal or tax advice; confirm current credential, exam, fee and CEU rules with AAPC, AHIMA, NHA, ACDIS or whichever body issues the credential you choose.