This page models secondary chains, shows likely downstream conditions, and previews what each additional rating path could do to overall compensation.
Strongest path count
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Select a primary condition
Highest modeled path
—
Compensation estimate waits for selection
Current posture
0%
Current modeled monthly $0
Regulatory anchor
§ 3.310
Secondary service connection · causation and aggravation
Step 1
Select your primary condition
Musculoskeletal
Mental Health
Neurological
Respiratory
Cardiovascular
Digestive
Ear / Hearing
Skin
Endocrine
Genitourinary
Immune
Dental
How secondary service connection works
Three elements drive the path.
1. Primary condition
You already have a service-connected disability in place.
2. Secondary diagnosis
You now carry a diagnosed condition caused or aggravated by that primary disability.
3. Medical nexus
A medical opinion links the secondary condition back to the primary or shows aggravation.
38 C.F.R. § 3.310 · causation and aggravation
Step 2
Model your rating posture
Pick a primary condition to unlock secondary mapping and compensation modeling.
Primary rating:Other ratings:
Current combined
0%
Exact 0%
Current monthly
$0
2026 base rate
Strong paths
—
Waiting on selection
Moderate paths
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Waiting on selection
Step 3
Secondary intelligence grid
Start with the primary.
Pick a service-connected condition from the left panel. This grid will populate with secondary paths, strength signals, diagnostic codes, typical rating bands, and modeled monthly upside.
Next actions
Take the path further.
Once you identify likely secondary paths, move into research, evidence prep, and file review with the rest of the platform. This page should be the start of the chain, not the end of it.