PCL-5
PTSD Checklist for DSM-5
Twenty-item self-report aligned with DSM-5 PTSD criteria — provisional diagnosis, severity, and symptom-cluster scores.
When to use the PCL-5
Use the PCL-5 when a client has a known or suspected index trauma and you need to quantify PTSD symptoms across the four DSM-5 clusters. Administer at intake after the trauma is identified, then every 4 weeks during trauma-focused treatment.
What the PCL-5 measures
Past-month severity of the four DSM-5 PTSD symptom clusters: intrusion (B), avoidance (C), negative alterations in cognition/mood (D), and arousal/reactivity (E). Yields a total severity score and cluster scores.
Use the PCL-5 when
- A positive trauma screen or a disclosed index event
- Establishing a provisional PTSD diagnosis before starting EMDR, CPT, or PE
- Tracking symptom change across a trauma-focused protocol
- Distinguishing PTSD from depression or generalized anxiety when presentations overlap
Why use the PCL-5 instead of another measure
The PCL-5 is anchored to a specific index event and maps directly onto DSM-5 Criteria B–E, so a cluster-level read tells you which symptoms to target (intrusions vs avoidance vs negative cognitions vs hyperarousal). It is free, self-report, and the standard outcome measure in trauma trials.
When not to use the PCL-5
- No index trauma has been identified — screen for exposure first (e.g. LEC-5)
- You need a confirmed diagnosis for legal or disability purposes — use the CAPS-5 clinician interview
- The client is actively dissociating or unsafe; stabilize before detailed symptom inventory
Scoring and bands
Cutoffs
Cutoff of ≥31–33 is most commonly used for provisional PTSD diagnosis. A 5-point change is reliable; a 10-point change is clinically meaningful. Cluster diagnosis requires meeting symptom criteria within each cluster (B ≥1 item ≥2; C ≥1; D ≥2; E ≥2).
What PCL-5 results mean — and what to do next
Below the provisional diagnostic threshold in most settings.
Next stepTreat the specific elevated clusters; consider whether depression or anxiety better explains the presentation.
At or above the provisional PTSD threshold (≥31–33).
Next stepOffer a trauma-focused protocol (CPT, PE, EMDR) and build stabilization skills first if needed.
High symptom burden.
Next stepTrauma-focused treatment with attention to sleep, dissociation, and safety; consider medication consult and paced sessions.
How often to re-administer
Every 4 weeks during active treatment. A 10-point change is considered clinically meaningful.
What to pair it with
ACE questionnaire (developmental adversity), PHQ-9 (comorbid depression), and AUDIT (substance use as avoidance).
How to talk about the score
Share the total and what it suggests provisionally. Walk through cluster scores so the client sees which dimensions are most active. The PCL-5 is sensitive — scores often shift week to week during active treatment, which is useful data.
Limitations
- Tied to a specific index event — must be clear which trauma the client referenced
- Self-report — under-reporting common with severe avoidance
- Provisional diagnosis only; full clinical interview needed for definitive diagnosis
- May be elevated by recent re-experiencing without meeting full criteria
Best used for
- PTSD screening and provisional diagnosis
- Treatment response tracking (especially PE, CPT, EMDR)
- Research and outcomes monitoring
Frequently asked questions about the PCL-5
Which trauma do I anchor the PCL-5 to?
The index trauma is the one currently driving distress. If multiple traumas, use the LEC-5 to identify the worst event, then anchor the PCL-5 to that.
What if scores drop mid-treatment but symptoms haven't changed clinically?
Look at cluster scores. Symptom shifting is common — intrusion may drop while avoidance is just being maintained, which is a partial improvement worth noting.