Diagnostic interviewing
Structuring an open conversation to surface symptoms, history and context a patient may not volunteer directly, then organizing it into a working diagnosis without a lab test to confirm it.
Risk assessment
Judging, often in a single encounter, how likely a patient is to harm themselves or others, and whether that risk requires involuntary hospitalization — a decision with real legal weight and no reliable algorithm behind it.
Differential diagnosis against medical causes
Ruling out thyroid disease, substance use, a brain tumor or a dozen other physical conditions that can mimic psychiatric symptoms before treating something as a primary mental illness — the part of the job that most depends on the psychiatrist's medical training.
Therapeutic alliance
Building enough trust, often with a frightened, involuntary or mistrustful patient, that they report symptoms honestly and stay in treatment — repeatedly shown in outcome research to matter as much as which specific therapy or drug is used.
Psychopharmacology
Selecting, dosing and adjusting psychiatric medication against a specific patient's symptoms, side-effect tolerance, other medical conditions and other drugs, then interpreting whether a lack of improvement means the wrong drug, the wrong dose, or the wrong diagnosis.
Psychotherapy technique
Delivering or supervising structured talk therapy — cognitive behavioral, psychodynamic or supportive — a skill set psychiatrists are trained in during residency but, in many health systems, use less than psychologists and counselors do.