38 CFR 3.310 provides that a disability which is proximately due to, the result of, or aggravated by a service-connected disability is itself service connected. For the cervical spine, that rule does a lot of work, because the neck rarely causes trouble in isolation.
The guides below each cover one of the most common pathways. In every case the requirement is the same: a current diagnosis of the secondary condition, an established service-connected primary, and a medical opinion explaining the mechanism between them.
Cervicogenic headaches
Headaches that begin at the base of the skull and spread forward, worsen with neck movement, and ease with treatment directed at the neck are described clinically as cervicogenic. They are among the most frequent complaints accompanying cervical degeneration and facet arthropathy.
For rating purposes, headaches are generally evaluated by analogy under Diagnostic Code 8100, which turns on prostrating attacks and their frequency. Our migraine ratings guide explains what prostrating means and how the frequency thresholds work, and our migraines and neck conditions guide covers this pathway in detail.
Radiculopathy in the arm
Numbness, tingling, and weakness running into the shoulder, arm, or hand from a service-connected neck condition is rated separately under 38 CFR 4.124a. Our cervical radiculopathy guide covers the diagnostic codes and the evidence. Where the source is the brachial plexus rather than the neck, our brachial neuritis guide covers those codes.
Where veterans start
Every case is different, and there is no obligation at any step. When veterans want to understand what their records actually support, these are the two most common starting points:
- Medical records review
A licensed physician reviews your records for a $250 flat fee and identifies which conditions the available evidence may support. The fee is refunded in full if nothing supportable is identified.
- Nexus letter
When the records support one, a licensed provider writes the medical opinion that addresses the link between your condition and your service or an already service-connected disability.
Shoulder and upper back conditions
A neck that will not rotate changes how the shoulder does its work. Veterans compensate by shrugging, reaching differently, and holding the shoulder girdle in a guarded position, which over time produces impingement, rotator cuff irritation, and chronic trapezius pain.
These claims need a mechanical explanation, not just proximity. A useful opinion describes the specific compensation pattern and why it loads the shoulder abnormally. Our shoulder pain guide covers how the shoulder itself is service connected, and the shoulder rating guide explains the percentages.
Sleep disruption and mental health
Chronic neck pain interrupts sleep, and sustained pain with poor sleep is a recognized contributor to depression and anxiety. Where a service-connected neck condition causes or aggravates a diagnosed mental health condition, it can be claimed under 38 CFR 3.310 - our depression and anxiety secondary conditions guide explains what that requires.
For mental health evaluations, our psychological evaluation package begins with a free screening to determine whether an evaluation is appropriate before anything moves forward.
Aggravation, not just causation
Secondary claims do not require that the service-connected condition created the new problem from nothing. Under 38 CFR 3.310(b), a permanent worsening is enough, and compensation is paid for the degree of worsening above the pre-aggravation baseline.
That makes the medical record before and after the service-connected condition especially important. Our records guide lists what to gather, and a records review identifies which pathways your evidence actually supports.
Frequently asked questions
Can headaches be secondary to a neck condition?
Yes. Cervicogenic headaches originate from structures in the cervical spine and are a recognized clinical entity. Where a service-connected neck disability causes or aggravates them, they may be service connected under 38 CFR 3.310 and are generally rated by analogy under the migraine criteria in Diagnostic Code 8100.
What does aggravation mean for a secondary claim?
Under 38 CFR 3.310(b), a non-service-connected condition permanently worsened by a service-connected disability is compensated for the degree of worsening. The record needs a baseline level of severity before the aggravation and the current level after it.
Can a neck condition be secondary to something else?
Yes. A service-connected shoulder, lumbar spine, or lower extremity condition that changes posture, gait, or load mechanics can cause or accelerate cervical degeneration. Secondary connection runs in both directions.