Two vendors. Same cost per case. Different cases entirely.
A soft-tissue MVA with no surgery and a fractured spine from a commercial truck collision both count as “one signed case” in most PI firm intake systems. Treat them as equivalent in your marketing analysis and you have built your budget decisions on fiction. One source is quietly degrading your case mix — and your volume metrics will never surface it.
Case severity analysis classifies signed cases by injury type, complexity, or projected value, then attributes that classification back to the lead source that generated the case. It turns your intake data into a lens for your lead generation strategy — not just how much you paid per case, but what kind of cases you are buying.
Why Case Volume Is the Wrong North Star
Most PI marketing programs optimize for case volume. The vendor who delivers more signed cases per dollar wins budget. The campaign that drove the most signings last quarter gets the highest allocation next quarter.
That logic holds when all cases have roughly equivalent value. It breaks down the moment your case mix varies by source — which it almost always does.
Two vendors, same price point: $800 per signed case. Vendor A produces cases with an average projected fee of $22,000. Vendor B produces cases averaging $65,000. Optimizing for volume, they look identical. Optimizing for value, Vendor B delivers nearly three times the expected return on the same acquisition cost.
Scaled to a $60K monthly allocation, that is roughly 75 cases at $22K average ($1.65M projected revenue potential) versus 75 cases at $65K average ($4.875M projected revenue potential). Same case count. A $3.2M value difference.
Case severity analysis is how you see that gap before it shows up — or doesn't — in your settlements 18 months from now.
Building a Case Severity Classification System
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Start by defining your severity tiers. Three to five tiers capture the meaningful distinctions in most PI case mixes without creating classification overhead that intake staff won't maintain. RevenueScale's case analytics moduletracks severity distribution by lead source automatically once tiers are defined.
A practical four-tier framework for motor vehicle accident cases:
- Tier 1 — Minor: Soft tissue injuries, no surgery, medical treatment under $10,000, no permanent impairment. Typical fee range: $3,000–$12,000.
- Tier 2 — Moderate: Documented treatment, potential for minor surgical procedures or significant PT, no permanent impairment. Typical fee range: $10,000–$35,000.
- Tier 3 — Significant: Surgery, hospitalization, or documented permanent impairment. Typical fee range: $30,000–$100,000.
- Tier 4 — Catastrophic: Severe or permanent disability, fatality, traumatic brain injury, spinal cord injury. Typical fee range: $100,000 and above.
Your specific tiers and fee ranges depend on your market, case types, and historical settlement data. The exact structure matters less than consistency — once defined, every signed case gets a severity tier assignment as part of the case opening workflow. No exceptions.
What Case Severity Data Reveals by Lead Source
With 90–180 days of severity-classified cases and source attribution, three patterns reliably emerge.
Severity Concentration by Source
Lead sources produce distinct severity distributions. Organic search leads — people who sought out a PI attorney after a serious accident — tend to skew toward higher severity. Aggregator leads, whose information was sold to multiple firms simultaneously, skew lower. Television leads vary widely by creative and market.
When a vendor is producing 80% Tier 1 cases against a portfolio average of 50% Tier 1, that vendor is dragging your average case value down. The question is whether their lower cost per case compensates for the lower average value — or whether you are funding high volume at the expense of case quality.
Value-Adjusted ROI by Source
Case severity analysis sharpens your ROI calculation. For each lead source, you can now measure:
- Average projected fee per signed case (weighted by severity tier distribution)
- Cost per signed case
- Estimated ROI multiple (projected fee ÷ acquisition cost)
A source producing cases at $900 acquisition cost with a $30,000 average projected fee runs at a 33x ROI multiple. A source at $700 acquisition cost with a $12,000 average fee runs at 17x. The cheaper source is the less efficient one — by every value-adjusted measure, even though it looks better on standard cost metrics.
Severity Trend by Source Over Time
Severity mix from a given source can shift quietly — a signal that the vendor has changed their acquisition method, targeting, or lead generation tactics. A vendor whose Tier 3 and Tier 4 case rate was 22% six months ago and is now 8% has changed something.
Severity trend analysis is an early warning system that conversion rate and rejection rate often miss. A vendor can hold a stable conversion rate while shifting to a lower-value case mix. Severity tracking catches that drift before it shows up in your settlements.
How to Use Severity Data in Your Lead Generation Strategy
Case severity data informs lead generation strategy in three specific ways.
Vendor Portfolio Optimization
Value-adjusted ROI changes budget allocation decisions. Vendors who consistently produce higher-severity case mixes — even at higher cost per lead or cost per case — may deserve larger allocations than their volume metrics suggest. Vendors generating volume with low-value case mixes may deserve budget cuts even when their conversion rate looks acceptable. The conversion rate is not the problem. The case mix is.
Campaign Targeting Adjustments
For owned channels — Google Ads, Facebook, programmatic display — severity analysis identifies which keyword clusters, audience segments, or creative themes produce higher-severity cases. If generic car accident keywords produce primarily Tier 1 cases and trucking accident keywords produce Tier 3 and above, that is a direct input to your bidding strategy and budget split. It is actionable at the campaign level today.
Intake Criteria Calibration
When severity analysis shows a source producing a high proportion of low-severity cases, one response is to tighten intake criteria for that source — raising the threshold for signing cases from that vendor. This requires collaboration with intake and case management. But it is a legitimate tool for improving signed case quality without necessarily cutting the vendor entirely.
The Lag Problem and How to Work Around It
The core challenge with case severity analysis is timing. The outcomes that validate severity assessments — settlements and fee collection — arrive 12–36 months after signing. You are classifying cases at intake based on projected severity. Actual severity only becomes fully clear when the case resolves.
That does not make severity analysis less useful. It means you need to calibrate your tier definitions against historical settlement data and revisit your classification assumptions annually. Over time, you build increasingly accurate mappings between initial severity assessments and actual settlement outcomes by case type — making your projected value estimates a more reliable planning tool each year.
In the meantime, even rough severity tiers tell you something concrete: which sources are sending higher-injury cases at intake. That leading indicator is actionable now — before the downstream settlement data exists to validate it fully.
The firms that win on marketing ROI stop measuring lead generation performance by volume and start measuring it by value. Case severity analysis is what makes that shift possible — and it connects directly to your vendor performance data when the right data infrastructure is in place.
Related guide: See our complete guide to PI lead generation by case type — how marketing economics change by practice area, with CPC benchmarks and channel strategies for each case type.
Related guide: See our complete guide to PI intake performance — the 8 metrics every PI firm should track, benchmarks, and how to connect intake data to marketing attribution.
