Doctors write using a structured format called the SOAP note, a system that organizes every patient encounter into four sections: Subjective, Objective, Assessment, and Plan. Nearly all clinical documentation follows this framework, whether it’s typed into an electronic health record during a 30-minute visit or dictated after surgery. But medical writing extends well beyond patient charts. Doctors also write prescriptions, referral letters, operative reports, and in some cases, research papers for medical journals, each with its own conventions and rules.
The SOAP Note: Medicine’s Core Format
The SOAP note is the backbone of how doctors document what happens during a patient visit. Each letter represents a distinct section with a specific purpose.
The Subjective section captures what the patient says. This includes symptoms, pain levels, how they’re feeling overall, and anything relevant happening in their life, like a new job or a family stressor. If the patient can’t speak, the doctor records their general appearance or mental status instead. This section is essentially the patient’s story in the doctor’s words.
The Objective section records measurable facts: vital signs, physical exam findings, lab results, imaging, and any other data the doctor can observe or test. If the Subjective section captures symptoms (what the patient feels), the Objective section captures signs (what the doctor can verify). Think blood pressure readings, range-of-motion measurements, or the results of a neurological exam.
The Assessment section is where the doctor’s clinical reasoning lives. Here they interpret everything from the first two sections, offer a diagnosis or a list of possible diagnoses, and explain how the patient is progressing. When a case is unclear, the doctor documents their “differential diagnosis,” a ranked list of conditions that could explain the symptoms, along with the reasoning behind their leading theory. If they decide not to order a particular test, they note why: maybe the risk outweighs the benefit, or the patient’s history makes a certain condition unlikely.
The Plan section outlines what comes next. This could be a new medication, a follow-up appointment in two weeks, a referral to a specialist, physical therapy exercises, or simply continuing the current treatment. In many cases the plan is straightforward, but it always needs to be documented clearly enough that another doctor could pick up the chart and understand exactly where things stand.
Why Precise Language Matters for Billing
Every word a doctor writes in a chart does double duty. Beyond guiding patient care, clinical notes feed directly into the billing system. Medical coders read the doctor’s documentation and translate it into standardized diagnosis codes (called ICD-10 codes) and procedure codes that determine how much an insurance company pays. According to the Centers for Medicare and Medicaid Services, a diagnosis code is assigned based on the provider’s own statement that a condition exists. The doctor doesn’t need to prove it with a specific lab threshold; their documented clinical judgment is what counts.
This creates real pressure to be specific. Codes must be reported “to the highest level of specificity documented in the medical record,” meaning a vague note leads to a vague code, which can trigger claim denials or underpayment. If a doctor writes “knee pain” but doesn’t specify which knee or whether the pain is acute or chronic, the coder can’t assign the most accurate code. When a definitive diagnosis hasn’t been established by the end of a visit, doctors document the specific signs and symptoms instead, and the billing codes reflect that uncertainty. The relationship between a doctor’s prose and a hospital’s revenue is surprisingly direct.
The Electronic Health Record Workload
Most doctors today write in electronic health records rather than on paper. The shift has been transformative, but not always in the ways patients might expect. A study of 307 primary care physicians at Massachusetts General Hospital and Brigham and Women’s Hospital found that doctors typically spent 36.2 minutes on the EHR per patient visit. For context, the average primary care visit itself runs about 30 minutes. Doctors are spending more time writing about the visit than conducting it.
That 36-minute figure includes about 6 minutes of what researchers call “pajama time,” the documentation doctors finish at home between 5:30 p.m. and 7 a.m. on weeknights or anytime on weekends. Another 8 minutes per visit goes to managing the EHR inbox: reviewing test results, responding to patient messages, and handling prescription refills. The cumulative effect is that a significant portion of a doctor’s workday is spent typing, clicking, and navigating software rather than talking to patients.
From Handwriting to Digital Prescriptions
The stereotype of illegible doctor handwriting exists for a reason. For most of modern medicine, prescriptions were scrawled on small pads using Latin abbreviations (“bid” for twice daily, “prn” for as needed) and handed to patients who carried them to a pharmacy. The pharmacist then had to interpret the handwriting, a process that sometimes went wrong with serious consequences.
Electronic prescribing has largely replaced this system. Doctors now select medications from dropdown menus, and prescriptions transmit directly to the pharmacy. Research from the Agency for Healthcare Research and Quality found that patients receiving e-prescriptions had fewer severe potential drug interactions among their dispensed medications compared to those receiving paper prescriptions. The system automatically flags dangerous combinations before the doctor even finishes writing the order.
Patients Can Now Read Their Doctor’s Notes
Since April 2021, a federal rule under the 21st Century Cures Act requires that eight categories of clinical notes be immediately available to patients through online portals. Doctors can no longer delay or block access to notes, test results, or imaging reports stored in the EHR. If your doctor writes a note after your visit on Tuesday morning, you can typically read it on your phone by Tuesday afternoon.
This has subtly changed how some doctors write. Harvard’s Risk Management Foundation advises clinicians to be “sensitive to terminology and descriptive language that may be unnecessarily hurtful or confounding to a lay reader.” The practical guideline: mirror the way you’d speak with the patient face to face. A doctor might have previously written “patient is a poor historian” to mean the person had trouble recalling their medical history. Now, knowing the patient will read that phrase, many doctors choose gentler, clearer wording. Specific clinical language required for billing still stays in the note, but the overall tone has shifted toward something more readable.
AI Scribes Are Changing the Process
One of the newest developments in medical writing is the ambient AI scribe, software that listens to the doctor-patient conversation through a microphone and drafts a clinical note automatically. A 2024-2025 randomized trial published in NEJM AI tested two AI scribe products across 238 outpatient physicians in 14 specialties. One product reduced the time doctors spent writing notes by 9.5% compared to the control group, while the other showed no significant time savings.
More notable than the time savings were the effects on doctor well-being. Both AI scribe groups reported improvements in burnout scores and reductions in perceived task load. Doctors using the tools felt less burdened by documentation, even when the actual minutes saved were modest. The tools weren’t perfect: clinically significant inaccuracies were rated as occurring “occasionally” by users, and doctors still needed to review and edit every note the AI produced. One mild adverse event was reported during the two-month trial. The technology is promising but still requires a human editor.
How Doctors Write for Medical Journals
When doctors write research papers, the rules change entirely. Medical journals follow a citation style called AMA (American Medical Association) format, which has its own rigid conventions. References are numbered in the order they appear in the text and marked with superscript numbers rather than parenthetical author-date citations. Journal names are abbreviated and italicized according to a National Library of Medicine database. If a paper has more than six authors, only the first three are listed, followed by “et al.”
Titles use sentence case, meaning only the first word is capitalized. The reference list is single-spaced, and each entry is broken into groups separated by periods, with commas, semicolons, and colons each serving specific roles within those groups. It’s a highly technical system designed to pack maximum information into minimum space, and getting it wrong can delay a paper’s publication. For most doctors, this kind of writing is a separate skill from clinical documentation, one learned during residency or fellowship and refined over years of practice.