Chief complaint
principal reason for a person seeking professional assistance

The chief complaint, formally known as CC in the medical field, or termed presenting complaint (PC) in Europe and Canada, forms the second step of medical history taking. It is sometimes also referred to as reason for encounter (RFE), presenting problem, problem on admission or reason for presenting. The chief complaint is a concise statement describing the symptom, problem, condition, diagnosis, physician-recommended return, or other reason for a medical
encounter. In some instances, the nature of a patient's chief complaint may determine if services are covered by health insurance.
When obtaining the chief complaint, medical students are advised to use open-ended questions. Once the presenting problem is elucidated, a history of present illness can be done using acronyms such as SOCRATES or OPQRST to further analyze the severity, onset and nature of the presenting problem. The patient's initial comments to a physician, nurse, or other health care professionals are important for formulating differential diagnoses.
Prevalence
The collection of chief complaint data may be useful in addressing public health issues. Certain complaints are more common in certain settings and among certain populations. Fatigue has been reported as one of the ten most common reasons for seeing a physician.
The public source identifies “Chief complaint” as principal reason for a person seeking professional assistance. This brief keeps that definition visible, then builds a research path around Chief, complaint and principal.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Chief complaint”, the useful work is to connect “principal reason for a person seeking professional assistance” to the records capable of establishing context and consequence.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 23, 2026. The linked authority identifier is Q41247. None of the 0 selected statements returned an explicit reference.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
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- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Chief complaint”, its source revision and the description used here.
- Expand the search: follow Chief complaint primary sources, Chief complaint archive and Chief research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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Search terms from this dossier
This entry incorporates text from “Chief complaint” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.