Use the PC-PTSD-5 when you need a brief first-stage PTSD screen. Use the PCL-5 when you need ratings across all 20 DSM-5 PTSD symptoms. Neither result is diagnostic. A safe workflow defines the population, cutoff policy, follow-up path, result reviewer, safety response, and clinical override before screening begins.
Know what each Survey Doctor result contains
| Output | PC-PTSD-5 | PCL-5 |
|---|---|---|
| Trauma exposure | Unscored lifetime gate | Not stored by Survey Doctor |
| Symptom responses | 5 past-month yes-or-no items after a Yes gate | 20 past-month ratings from 0 to 4 |
| Total | 0 to 5 | 0 to 80 |
| Cluster sums | No | Four DSM-5 clusters |
| Provisional DSM rule | No | Not calculated by Survey Doctor |
| Manual entry | Disabled | All four whole-number cluster sums required |
The VA PC-PTSD-5 reference defines its branch. A No answer to the lifetime trauma gate ends the screen with a total of 0. A Yes answer opens five required symptoms, and the total counts Yes responses.
That creates two possible zero paths. A total of 0 can mean the gate was No, or it can mean the gate was Yes and all five symptoms were No. The total alone does not distinguish them.
Branch matters.
The VA PCL-5 reference defines 20 symptom ratings, a 0-to-80 total, and four cluster sums. The official Standard form asks for the respondent's worst event. Survey Doctor does not collect or store that field.
Do not assume the event focus is in the record.
Choose a cutoff for the actual setting
The VA currently emphasizes a PC-PTSD-5 cutoff of 4 based on a large VA primary-care sample. Its guidance also says performance changes with the sample, screening purpose, and available follow-up. It notes that 4 produced more false negatives among women in that sample.
Do not hard-code 4 as a universal threshold. A lower threshold generally identifies more possible cases and creates more follow-up. A higher threshold generally misses more cases while reducing false positives. Record the reason for the local choice.
Cutoffs trade errors.
Document the choice.
The VA PCL-5 page discusses a provisional cut-point range of 31 to 33 across samples. It also tells users to consider the population and assessment purpose when choosing a cutoff. The separate VA scoring guide states that empirically derived severity ranges are unavailable.
Survey Doctor therefore withholds PCL-5 severity labels. Do not turn 0 to 80 into unsupported mild, moderate, or severe bands.
Thresholds need context.
Decide whether a two-stage workflow adds value
A brief-first pathway can be useful when the goal is to identify who may need a fuller assessment:
- Define who will be screened and why.
- Choose and document the PC-PTSD-5 cutoff for that population.
- Define who reviews positive screens and how quickly.
- Follow a positive result with a fuller assessment or clinical interview.
- Allow clinical concern to override a negative result.
- Record the form, threshold, branch, and follow-up decision.
Starting with the PCL-5 may be reasonable when trauma symptoms are already the presenting concern and a broader symptom description is needed. Adding a brief screen first is not automatically more informative.
The measure should serve the decision.
Fit comes first.
Interpret the PCL-5 output correctly
Survey Doctor reports the PCL-5 total and four cluster sums. The clusters contain different numbers of items and have different ranges. Do not rank the raw sums as though the largest number identifies the dominant problem.
Official guidance describes a provisional DSM symptom-count method. Survey Doctor does not calculate it. A product result is not a provisional diagnosis and should not be documented as one.
Output is not diagnosis.
A diagnostic assessment also considers the event, duration, daily function, other conditions, current danger, and the full clinical picture. A questionnaire cannot provide those judgments by itself.
Preserve score provenance
Native PC-PTSD-5 results preserve the gate and item answers. Manual score-only entry is disabled because a single total cannot preserve the branch or explain a zero.
Manual PCL-5 entry requires all four cluster sums within their supported ranges. Survey Doctor derives the total. That record cannot establish the 20 item answers, event focus, exact form, timeframe, or provisional DSM symptom pattern.
Records differ.
Do not divide an outside total into estimated clusters. Review the source record before relying on a manual score.
Provenance matters.
Use source records.
For repeated PCL-5 measurement, keep the form, timeframe, event focus, and administration conditions consistent. Hold the context steady. Interpret change alongside functioning, patient report, and treatment context. The guide to tracking trauma symptoms over time explains those comparison limits. Survey Doctor does not apply one universal response or remission rule.
Plan for safety and exceptions
A result below the chosen cutoff does not rule out PTSD. Look beyond the total. Disclosure, timing, culture, current circumstances, and the limits of a brief screen can affect responses.
A result above the cutoff does not confirm PTSD. Depression, anxiety, sleep problems, substance use, medical illness, grief, and ongoing stress can overlap with trauma-related symptoms.
Neither questionnaire is a complete suicide or self-harm assessment. Act on exceptions. Review urgent safety concerns immediately, regardless of score.
Safety overrides the score.
If you need help now. In the US, Call 988 or text 988. Call 911 if you are in immediate danger. Outside the US, contact your local emergency number or find support in your country.
The practical rule
Use the PC-PTSD-5 to identify who may need more assessment. Use the PCL-5 to describe a broader past-month symptom pattern. Use a clinical evaluation to make diagnostic and treatment decisions.
For a side-by-side explanation, read PCL-5 vs PC-PTSD-5. The PCL-5 score guide and PC-PTSD-5 score guide document the current output limits.