Key Points
- Medical billing and coding pairs two connected skills: coders convert clinical notes into standardized codes, and billers use those codes to submit insurance claims and collect payments.
- Medical records specialists earn a median annual wage of $50,250 in May 2024 according to BLS, with wages varying by industry, certification, and experience.
- Employment is projected to grow 7% from 2024 to 2034, much faster than the average for all occupations, with hospitals and physicians' offices as the two largest employers.
- Training options range from a postsecondary certificate (typically 6 to 12 months) to an associate degree (about 18 to 24 months).
- Certification is voluntary but employer-preferred, with the AAPC CPC, AHIMA CCS, and NHA CBCS among the most recognized credentials.
What Does a Medical Biller and Coder Do?
A medical biller and coder handles the paperwork that connects patient care to payment. The role combines two technical functions that often appear under one job title, especially in smaller practices.
A medical coder reviews a clinical encounter (doctor's notes, lab results, procedure records) and assigns the correct alphanumeric codes that describe the diagnosis and the services provided. The codes follow national standards so every insurer and provider reads them the same way.
A medical biller uses those codes to build and submit a claim to the patient's insurance company, tracks the claim through processing, handles denials or appeals, and follows up on patient balances after insurance pays its share.
In a large hospital, a team of dedicated coders typically works alongside a separate billing department. In a small physician's office, both functions are often handled by one person. Either way, accuracy matters more than speed: a single miscoded service can mean a denied claim, lost revenue for the provider, and a balance the patient was not expecting. People who do well in this work tend to be comfortable with detailed rules, careful documentation, and steady, mostly independent computer work. People who want constant variety, fast movement, or a lot of face-to-face contact often find it tedious, which is worth knowing before you commit time and money to training.
Medical Coding: How Patient Records Become Codes
Medical coders assign standardized codes that describe what a provider diagnosed and what they did about it. Three code sets cover the bulk of US healthcare:
- CPT (Current Procedural Terminology). Five-digit numeric codes that describe procedures and services. A routine office visit, a blood draw, an X-ray, and a knee surgery each have their own CPT code. The American Medical Association maintains the CPT code set and updates it every year.
- ICD-10-CM (International Classification of Diseases, 10th Revision, Clinical Modification). Alphanumeric codes that describe a patient's diagnosis. ICD-10 codes tell the insurer why a service was performed, which is what determines medical necessity.
- HCPCS Level II (Healthcare Common Procedure Coding System). Codes for items not covered by CPT, including durable medical equipment, ambulance services, prosthetics, and certain medications administered by a provider.
Coders are responsible for accuracy, regulatory compliance (especially HIPAA), and consistent interpretation across providers. They typically work from electronic health records and reference coding software or manuals for every claim.
Medical Billing: How Codes Become Claims
Medical billing is the process of turning coded patient information into a claim that gets paid. A typical billing cycle moves through several steps: registering the patient, verifying insurance coverage and financial responsibility, capturing the encounter, preparing and submitting the claim, tracking insurance approval, generating a patient statement for any remaining balance, and following up on outstanding payments.
Two main types of medical billing operate alongside each other:
- Professional billing. Covers services from individual providers such as physicians, dentists, mental health professionals, and therapists. Professional billing uses the CMS-1500 form and focuses on outpatient and ambulatory care.
- Institutional billing. Covers services from facilities such as hospitals, skilled nursing facilities, and outpatient surgery centers. Institutional billing uses the UB-04 form and handles facility fees, inpatient stays, and complex procedures.
The two billing types use different forms, documentation, and payer rules, which is why larger organizations tend to staff them as separate functions.
How Medical Billing and Coding Work Together: The Code-to-Claim Workflow
Billing and coding connect through a four-stage workflow that turns a patient encounter into a paid claim.
Stage 1: The Clinical Encounter
A provider sees a patient and documents the visit in the electronic health record. The note captures the diagnosis, the services performed, any medications administered, and any equipment used.
Stage 2: Coding
A medical coder reviews the documentation and assigns the right combination of ICD-10 codes (for the diagnosis), CPT codes (for procedures and services), and HCPCS codes when applicable. The coder flags any documentation gaps back to the provider so the codes match the care delivered.
Stage 3: Claim Creation and Submission
A medical biller takes the coded record, builds the claim on the correct form (CMS-1500 or UB-04), verifies patient and insurance details, and submits the claim to the payer. Most claims are submitted electronically through clearinghouses.
Stage 4: Payment and Follow-Up
The insurance payer reviews the claim and approves, partially pays, or denies it. The biller tracks the result, files appeals on denied claims, posts payments to the patient account, and bills the patient for any remaining balance. The cycle closes when the account is paid in full.
This handoff is the operational core of medical billing and coding work. The coder owns clinical accuracy. The biller owns the financial result. When the workflow breaks down, providers lose revenue and patients receive balance bills that should not exist. Weighing this as a career? Comparing programs on Dreambound shows which ones prepare you for both sides of this workflow, not just one.
Where Medical Billers and Coders Work
Medical billers and coders work in nearly every setting that delivers or administers healthcare. Medical records specialists held about 194,800 jobs in 2024, and according to BLS the largest employers are:
- Hospitals (state, local, and private): 28% of jobs
- Offices of physicians: 19%
- Management of companies and enterprises: 8%
- Administrative and support services: 8%
- Professional, scientific, and technical services: 7%
Other settings include outpatient surgery centers, skilled nursing facilities, mental health clinics, dental practices, insurance companies, third-party billing services, and consulting firms. Because the work is fully electronic and does not require direct patient contact, remote roles are common, particularly at large multi-site health systems and third-party billing companies. If you would prefer to train remotely too, many online medical billing and coding classes are self-paced.
Medical Biller and Coder Salary and Job Outlook
Medical records specialists earn a median annual wage of $50,250 according to BLS May 2024 data. Wages vary widely by industry, geography, certification stack, and experience, and the BLS median reflects all workers in the category, not entry-level pay.
Employment is projected to grow 7% from 2024 to 2034, much faster than the average for all occupations, with about 14,200 openings each year on average over the decade. BLS attributes the growth to an aging population and the rising prevalence of chronic conditions, both of which push claim volume higher. The agency also notes that AI-powered coding tools may affect demand for these workers.
Dreambound's 2025 Student Choice and Interest Report places medical billing and coding among the top five most-saved program categories on the platform, with 1,026 saves in 2025. That level of student interest reflects a recurring pattern across healthcare administration paths: shorter training timelines, lower upfront cost, and a clear credential ladder make medical billing and coding one of the more common entry points students compare on the platform.
How to Become a Medical Biller and Coder
Getting into the field follows four high-level steps:
- Meet the basic requirement. Most programs ask for a high school diploma or GED. From there, you can compare medical billing and coding programs on Dreambound to see formats and credentials side by side.
- Complete a training program. A postsecondary certificate or diploma is the common route, while an associate degree takes longer and covers more. Programs run from a few months to about two years, and you can see exactly how long each path takes before you commit.
- Earn a certification. Certification is voluntary but employer-preferred. The AAPC CPC, AHIMA CCS or CCA, and NHA CBCS are the most recognized, and most programs prepare you for one of them.
- Start applying. Entry-level coding and billing roles are competitive, and many employers prefer some experience, so plan for a focused job search after you certify.
Medical Billing and Coding Programs on Dreambound
Dreambound gathers medical billing and coding programs from schools across the country so you can see formats, lengths, and credentials in one place. When you compare, the details that matter most are accreditation, whether the program prepares you for a recognized certification like the CPC or CBCS, and a format and length that fit your life, since those are what separate a program you actually finish from one you do not. Here are accredited online options, from shorter certificate paths to longer associate degrees.
Certificate and Diploma Programs
- Format: Online
- Length: 26 weeks, with a 16-week CPC boot camp track for allied-health backgrounds
- ACCET-accredited, with curriculum built around the AAPC CPC exam
