The ROS medical abbreviation stands for review of systems, a set of questions about symptoms in each part of the body that a clinician asks during the history. Answers are recorded as positives, things the patient has, and negatives, things the patient denies.
ROS is part of the history, not the physical exam. Nobody touches or examines you for it; it is entirely what you report. It usually follows the HPI in an admission or clinic note. Below you will find the body systems it covers, how to decode a typical line, and why it catches problems that the main complaint might hide.
At a glance
Stands for
Review of systemsPart of
The history in an H and P or clinic noteSystems recognized
14 for US billing documentation, from constitutional to allergic and immunologicWritten as
ROS, R.O.S.Other meaning
Reactive oxygen species, in biology and lab researchDo not confuse with
ROSC, return of spontaneous circulation
What the ROS medical abbreviation covers
During a review of systems, the clinician walks through the body and asks short yes or no questions: any fever or weight loss, any vision changes, any chest pain, cough, nausea, burning with urination, joint pain, rash, numbness, low mood. Each answer is a symptom the patient reports, so ROS findings are subjective by nature.
The purpose is to catch symptoms the patient did not think to mention. Someone visiting for a sore knee might also have had night sweats for a month, and the ROS is where that surfaces. Findings that matter to the current problem are called pertinent positives and pertinent negatives.
The body systems in a full review
US documentation guidelines recognize fourteen systems. Not every visit covers all of them; a focused visit may review only the systems linked to the complaint.
| System | Sample question |
|---|---|
| Constitutional | Fever, chills, weight change, fatigue? |
| Eyes | Blurred or double vision? |
| Ears, nose, mouth and throat | Sore throat, hearing change? |
| Cardiovascular | Chest pain, palpitations, leg swelling? |
| Respiratory | Cough, shortness of breath? |
| Gastrointestinal | Nausea, belly pain, change in stools? |
| Genitourinary | Burning, frequency, blood in urine? |
| Musculoskeletal | Joint pain or stiffness? |
| Skin and breast | Rash, new lump? |
| Neurological | Headache, numbness, weakness? |
| Psychiatric | Mood changes, trouble sleeping? |
| Endocrine | Excess thirst, heat or cold intolerance? |
| Blood and lymph | Easy bruising, swollen glands? |
| Allergic and immunologic | Seasonal allergies, frequent infections? |
Decoding an ROS line
Notes compress the review into a few phrases. Neg means negative, + means present, and denies means the patient said no.
Admission note: "ROS: + cough, + subjective fevers. Denies chest pain, N/V, dysuria. All other systems reviewed and neg." The patient reports a cough and feeling feverish, has no chest pain, nausea, vomiting or burning with urination, and the clinician asked about the remaining systems and found nothing else.
A line such as "10 point ROS negative" means ten systems were asked about without any positive answer. Some coding experts prefer the word systems over points, but both appear in charts.
ROS versus the physical exam
Students often blur these two. The ROS records what the patient says; the physical exam records what the clinician observes, hears or feels. A patient may report no shortness of breath in the ROS, while the exam notes clear lungs on listening, documented as CTAB. The two halves complement each other.
When they disagree, such as a patient denying leg swelling while the exam finds it, the note should say so, since that mismatch can be clinically useful.
Is ROS a prescription abbreviation?
People sometimes search for ROS as a prescription term, but it has no standard meaning on a medicine label or order. It belongs to history taking. If you see ROS on a prescription or pharmacy document, it is probably part of an attached visit note, or a local shorthand that the pharmacy should explain.
As a medical acronym ROS has one main meaning in medical terminology: review of systems. Outside clinical notes, ROS also stands for reactive oxygen species, molecules discussed in biology and research. That meaning shows up in lab science, not in patient charts.
ROS in documentation and coding
For years, US billing rules tied the level of a visit partly to how many systems were reviewed, which is why templates with long negative lists became common. Current rules for office and hospital visits base the level on medical decision making or time instead, so a focused, relevant ROS now carries more value than a long copied list. Many facilities still expect a review appropriate to the problem.
Scribes and coding trainees can find related history and exam shorthand on the chart notes abbreviation hub.
The review of systems in your record should match what you said. Should a listed symptom be one you never described, tell your care team and ask for a correction.
Frequently asked questions
What does ROS mean in a medical note?
ROS means review of systems. It is a list of symptom questions grouped by body system, recorded as what the patient reports or denies.
Is ROS part of the physical exam?
No. ROS is part of the history and is based on what the patient says. The physical exam is a separate section based on what the clinician finds.
What does ROS negative mean?
It means the patient denied symptoms in the systems that were asked about. A note may add that all other systems were reviewed and were negative.
How many systems are in a review of systems?
US documentation guidelines recognize fourteen. A complete review covers ten or more, while a focused visit may cover only those related to the complaint.