What Is Medical Billing and Coding? A Complete Career Guide
Here is something that surprises a lot of people exploring healthcare work: one of the larger healthcare occupations in the country involves no hands-on patient care at all. The U.S. Bureau of Labor Statistics counted about 194,800 medical records specialists in 2024 — the federal occupational category that covers coding and health records work — and describes it as one of the few health-related occupations with no direct hands-on patient care. If the clinical side of healthcare never appealed to you, that detail alone may reframe what a healthcare career can look like.
So what is medical billing and coding? At its simplest, it is the work of translating the care a patient receives into standardized codes, then using those codes to request payment from insurers. Coding converts diagnoses, procedures, and services into a shared numerical language. Billing takes that language and turns it into claims that move through the payment system. Together, the two functions are how clinics, hospitals, and physician offices get paid for the care they deliver.
Here is the short version before we get into the detail:
- Coding assigns standardized codes to the diagnoses, procedures, and services documented in a patient’s chart.
- Billing uses those codes to build insurance claims, submit them, and follow them through to payment.
- Most people enter with a postsecondary certificate, though BLS notes some positions accept a high school diploma and others may prefer an associate or bachelor’s degree.
- Employers may require or prefer a professional certification, which is earned through an independent certifying organization rather than awarded by a school.
What Is Medical Billing and Coding in an Actual Workflow?
It helps to follow one patient visit from start to finish. A patient sees a provider, the provider documents what happened, and that documentation becomes the raw material for everything downstream. A coder reads the chart and assigns codes describing the diagnosis and the services performed. A biller assembles those codes into a claim, sends it to the insurer, and tracks what comes back. The full sequence is commonly called the revenue cycle.
What Medical Coding Involves
Coding is fundamentally a reading and classification job. You review clinical documentation, decide which standardized codes accurately describe what took place, and enter them into the record. BLS lists the core duties as reviewing records for timeliness, completeness, and accuracy; using classification systems to assign clinical codes; maintaining and retrieving records for insurance reimbursement and data analysis; and ensuring the confidentiality of patient records. Accuracy carries more weight than speed here, because an incorrect code changes what the insurer sees.
What Medical Billing Involves
Billing picks up where coding leaves off. You prepare the claim, submit it to the payer, monitor its status, and handle what happens when a claim is denied or underpaid. That often means correcting errors, resubmitting, and communicating with insurers, practice staff, and sometimes patients about balances. It is detail work with a follow-through component, because an unresolved claim is unrecovered revenue for the practice.
Medical Coding vs Medical Billing: Where Do They Differ?
The two are frequently bundled into a single job title, and in smaller practices one person may genuinely do both. They are still distinct skill sets. The medical coding vs medical billing distinction comes down to what each role acts on: coders act on clinical documentation, while billers act on claims and payments.
| Dimension | Medical Coding | Medical Billing |
| Primary input | Clinical documentation in the patient chart | The codes produced by the coder |
| Core task | Assigning standardized diagnosis and procedure codes | Preparing, submitting, and following up on claims |
| Main contacts | Providers and clinical staff, for documentation questions | Insurance payers, practice staff, and patients |
| Work looks successful when | Codes accurately reflect the documented care | Claims are paid correctly and without avoidable delay |
| Strength it rewards | Analytical reading and classification | Persistence and process follow-through |
Employers advertise both combined and separated roles, so read job postings closely rather than assuming the titles mean the same thing everywhere. Understanding the medical coding vs medical billing split also helps you work out which half of the work you would actually enjoy.
What Does a Medical Biller and Coder Do Day to Day?
Most of the work happens at a computer. BLS reports that medical records specialists typically spend many hours at a computer and that most work full time, with shift work possible in facilities that are always open, such as hospitals. So when people ask what does a medical biller and coder do, the honest answer is structured desk work with steady cognitive demand rather than physical variety.
- Reviewing new charts and clinical notes
- Assigning or verifying codes for diagnoses, procedures, and services
- Preparing and submitting claims to insurance payers
- Working through a queue of denied, rejected, or pending claims
- Following up with providers when documentation is unclear or incomplete
- Maintaining patient privacy standards throughout
Where you do this work varies more than people expect. BLS reports that hospitals employed about 28 percent of medical records specialists in 2024, followed by offices of physicians at 19 percent, with the remainder spread across management of companies and enterprises, administrative and support services, and professional, scientific, and technical services.
How to Become a Medical Biller and Coder
There is no single mandated route, which is both an advantage and a source of confusion. If you are working out how to become a medical biller and coder, this is the sequence most people follow.
- Complete high school or an equivalent. BLS notes a diploma plus experience in a healthcare setting is enough to qualify for some positions.
- Complete a training program. BLS notes that community colleges and technical schools offer certificate and associate degree programs, typically including coursework in medical terminology, health data requirements and standards, and classification and coding systems.
- Build working familiarity with coding classification systems and electronic health records software, since employers expect practical knowledge of the tools.
- Decide whether to pursue a professional certification, and confirm current eligibility requirements directly with the certifying organization.
- Apply for entry-level roles, and expect continued learning on the job as code sets and payer rules change.
Programs vary widely in length, format, and cost, so compare them on specifics rather than on marketing language. Career-focused institutions such as ICOHS College offer programs in this area, including AI Medical Billing & Coding, and reviewing the actual course list is a practical way to judge whether a given program covers what employers in your area are asking for.
ICOHS College:
What Medical Billing and Coding Certification Options Exist?
This is the part that trips people up most often. A medical billing and coding certification is not issued by a school. It is earned by passing an exam administered by an independent certifying organization, and it is separate from any certificate of completion a training program awards.
BLS reports that certification may be required or preferred, and that employers may expect applicants to earn certification shortly after being hired. BLS also notes that certifications usually require candidates to pass an exam and might require previous experience or education, and that certificate, associate, or bachelor’s degree programs may help students meet those requirements. The certifying body sets the rules, not the school.
Two organizations commonly referenced for medical billing and coding certification in the United States are AAPC and AHIMA. Exam names, prerequisites, and fees change over time, so verify current details on the certifying organization’s own website before committing to a path. BLS points readers to the CareerOneStop certification finder as a neutral starting point for comparing options.
What Does the Medical Billing and Coding Career Outlook Look Like?
This is where you want federal data rather than a pitch. According to BLS, the median annual wage for medical records specialists was $50,250 in May 2024, or about $24.16 per hour. The lowest 10 percent earned less than $35,780 and the highest 10 percent earned more than $80,950 — a wide band reflecting differences in experience, setting, and location.
| Measure (medical records specialists) | BLS figure |
| Median annual wage, May 2024 | $50,250 ($24.16 per hour) |
| Lowest 10 percent | Less than $35,780 |
| Highest 10 percent | More than $80,950 |
| Employment, 2024 | 194,800 |
| Projected employment, 2034 | 208,600 |
| Projected change, 2024–34 | 7 percent (13,800 jobs) |
| Projected annual openings | About 14,200 |
| Typical entry-level education | Postsecondary nondegree award |
Wages also differ by industry. BLS reports May 2024 median wages ranging from $45,620 in offices of physicians to $60,750 in management of companies and enterprises, with hospitals at $56,520. Anyone weighing a medical billing and coding career should read those as population medians, not as personal projections. Individual earnings depend on factors including experience, credentials, employer, and geographic area, and outcomes vary by individual.
Where This Career Path May Not Be the Right Fit
A useful guide has to include the counterweights, and there is one you should know before investing time or money.
BLS states that the increase in adoption of artificial intelligence solutions that make the medical coding process more efficient may affect the demand for these workers. That caveat sits in the same BLS analysis as the 7 percent growth projection, and it is a material consideration for anyone planning a long medical billing and coding career. It is also part of why some training programs now build AI tools into the coursework rather than teaching coding as a purely manual task.
Several other honest mismatches are worth naming:
- The work is sedentary and screen-based for most of the day, with limited physical variety.
- Sustained attention to detail is not optional, because small errors have financial consequences for the practice.
- Code sets and payer rules change, so learning continues well past the end of a training program.
- Certification exams carry their own fees and prerequisites, separate from any program cost.
- Some employers expect prior healthcare experience even for postings labelled entry level.
Deciding Whether This Path Fits Your Goals
So, what is medical billing and coding? It is the administrative and analytical work of turning documented patient care into standardized codes, and then into paid claims — a healthcare role built around records and reimbursement rather than direct patient contact. The entry path is comparatively short, the federal data shows projected growth alongside a genuine automation caveat, and the credential landscape is controlled by outside certifying bodies rather than by schools.
If the day-to-day description reads as satisfying rather than tedious, a sensible next step is to compare specific programs on their course content and to check the current requirements of whichever certification employers near you tend to request. Outcomes vary by individual, and the more precisely you can describe the job you want, the better positioned you are to judge whether a given program is designed to prepare students for it.
FAQs
What is medical billing and coding in simple terms?
It is the process of converting documented medical care into standardized codes and using those codes to obtain payment from insurers. Coding handles the translation; billing handles the claim. One describes what happened clinically, the other makes sure the provider is paid for it.
Do you need a degree to work in medical billing and coding?
Not necessarily. BLS reports that medical records specialists typically need a postsecondary certificate to enter the occupation, although some qualify with a high school diploma and others might need an associate or bachelor’s degree. Because individual employers set their own requirements, job postings in your area are worth reading directly.
How long does it take to become a medical biller and coder?
It depends entirely on the program format you choose, and BLS does not publish a single standard duration for the occupation. Certificate and associate degree paths differ substantially in length. Ask each school for its specific credit or clock hours and expected completion timeline rather than relying on a general figure.
Is medical billing and coding affected by AI?
BLS notes that increased adoption of AI-powered solutions making the coding process more efficient may affect demand for these workers, while still projecting 7 percent employment growth from 2024 to 2034. Both statements appear in the same BLS analysis. Practically, that points toward understanding the AI tools used in the field rather than treating coding as a purely manual skill.
