Primary Care PTSD Screen for DSM-5 (PC-PTSD-5)

Why use it

PTSD is prevalent across primary care populations — estimated lifetime prevalence of 7–8% in the general population and up to 30% in combat veterans. PTSD is frequently underdiagnosed in primary care due to the absence of routine screening and the stigma surrounding trauma disclosure. The PC-PTSD-5 is brief (1–2 minutes to complete), freely available, validated against the gold-standard CAPS-5, and designed for non-specialist settings. It is endorsed by the U.S. Department of Veterans Affairs, the U.S. Department of Defense (DoD), the International Society for Traumatic Stress Studies (ISTSS), and is recommended in VA/DoD clinical practice guidelines for PTSD screening in primary care settings.

About

The Primary Care PTSD Screen for DSM-5 (PC-PTSD-5) is a validated 5-item self-report screening instrument designed to identify probable PTSD in primary care and other clinical settings. It was developed by Prins and colleagues and published in the Journal of General Internal Medicine in 2016 as an update to the original 4-item PC-PTSD (designed for DSM-IV) to align with DSM-5 PTSD diagnostic criteria. The screen was developed and validated within Veterans Affairs (VA) primary care populations but has since been validated more broadly across diverse clinical samples. Each item corresponds to one of the five DSM-5 PTSD symptom domains: (1) intrusion — nightmares or unwanted memories; (2) avoidance — efforts to avoid reminders; (3) hyperarousal — being on guard or easily startled; (4) negative alterations in cognition and mood — emotional numbing or detachment; and (5) negative cognitions — guilt or self-blame. The respondent is first asked to identify a past stressful or traumatic experience and then to indicate whether any of the five symptom items applied to them in the past month (Yes/No). A score of 3 or more is the recommended cut-point for a positive screen, yielding optimal sensitivity and specificity for probable PTSD diagnosis. At the cut-point of ≥3, the PC-PTSD-5 demonstrates sensitivity of 95.6% and specificity of 64.7% for DSM-5 PTSD against the CAPS-5 (Clinician-Administered PTSD Scale for DSM-5) gold standard.

When to use

• Routine PTSD screening in primary care, particularly for patients with known trauma history, veterans, refugees, survivors of violence or natural disasters
• Patients presenting with unexplained somatic symptoms, chronic pain, sleep disturbances, or depression that may be trauma-related
• Pre-deployment and post-deployment screening in military and veteran populations
• Emergency department patients who have experienced traumatic injury or violence
• First-responders, healthcare workers, and others with occupational trauma exposure
• Annual screening in settings with high trauma burden (VA, refugee health clinics, correctional health)
• Follow-up of patients with prior trauma to detect delayed PTSD onset

Formula

Pearls & pitfalls

• The recommended cut-point is ≥3 (any 3 of 5 items endorsed). Using a cut-point of ≥2 increases sensitivity (98%) but reduces specificity — may be appropriate in high-prevalence settings.
• The PC-PTSD-5 is a SCREENING tool, not a diagnostic instrument. A positive screen should trigger a full PTSD diagnostic evaluation (e.g., CAPS-5 or structured clinical interview) — it does NOT confer a PTSD diagnosis.
• The lead-in question about a past traumatic or stressful event is important — respondents who deny any past trauma AND score ≥3 should be followed up sensitively, as some patients do not identify their experiences as "traumatic."
• PTSD frequently co-occurs with major depressive disorder (MDD), generalized anxiety disorder, alcohol use disorder, and chronic pain — screen for and address comorbidities.
• A negative PC-PTSD-5 does not exclude PTSD — clinical judgment remains essential when there is strong clinical suspicion despite a negative screen.
• The PC-PTSD-5 has been validated primarily in veteran and U.S. primary care populations; validation in pediatric populations and some international settings is more limited — use the CPSS or other age-appropriate tools for children.
• For detailed severity tracking after a positive screen, use the PTSD Checklist for DSM-5 (PCL-5) — a 20-item self-report measure that maps directly to DSM-5 PTSD criteria and is sensitive to treatment change (MCID ~5–10 points).
• The PC-PTSD-5 replaces the PC-PTSD (4-item DSM-IV version) — the additional item 5 (guilt/self-blame) captures the DSM-5 negative cognition criterion, improving sensitivity for the full DSM-5 PTSD construct.
• Trauma-informed care principles should be applied throughout: ask for permission before discussing trauma, explain why you are screening, be prepared to respond supportively to disclosures, and provide resources.

Next steps

Score 0–2 (Negative Screen): PTSD unlikely. Reassess if symptoms worsen or new trauma occurs. Address comorbid anxiety, depression, or sleep disorders as clinically indicated. Score ≥3 (Positive Screen): Probable PTSD — positive screen requires clinical follow-up, not diagnosis. Administer a full PTSD diagnostic assessment (CAPS-5, PCL-5, or structured clinical interview). Assess safety (suicidality, domestic violence, substance use). Offer trauma-informed care and refer to mental health services. First-line treatments: trauma-focused CBT (Prolonged Exposure, Cognitive Processing Therapy) and pharmacotherapy (sertraline or paroxetine — FDA-approved; venlafaxine as alternative). Discuss treatment options and shared decision-making.

Evidence

Prins A et al. The Primary Care PTSD Screen for DSM-5 (PC-PTSD-5): Development and Evaluation Within a Veteran Primary Care Sample. J Gen Intern Med. 2016;31(10):1206-1211. PMID:26946182. Validation: n=398 VA primary care patients; gold standard CAPS-5. At cut-point ≥3: sensitivity 95.6%, specificity 64.7%, AUC 0.87. Prior version: PC-PTSD (4-item DSM-IV): Prins A et al. J Gen Intern Med. 2003;18(11):895-900. VA/DoD Clinical Practice Guideline for PTSD (2023) recommends PC-PTSD-5 as the primary care screening tool.

References

1. Prins A et al. The Primary Care PTSD Screen for DSM-5 (PC-PTSD-5): Development and Evaluation Within a Veteran Primary Care Sample. J Gen Intern Med. 2016;31(10):1206-1211. — link
2. Bovin MJ et al. Psychometric properties of the PTSD Checklist for Diagnostic and Statistical Manual of Mental Disorders-Fifth Edition (PCL-5) in veterans. Psychol Assess. 2016;28(11):1379-1391. — link
3. VA/DoD Clinical Practice Guideline for the Management of Posttraumatic Stress Disorder and Acute Stress Disorder. Version 4.0. 2023. — link
4. American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). Washington, DC: APA; 2013. — link