If you served and now have a medical condition you think may be tied to your time in uniform, the VA disability system has a place for you. Over 1,000 conditions are listed in the official VA rating schedule, and the list keeps growing as new research links service exposures to long-term health problems. The PACT Act alone added over 330 conditions in the last few years.
This guide covers the three things you need to understand to file a strong claim: which conditions qualify, how the VA assigns a diagnostic code and rating, and the five different ways your condition can be considered service-connected. The information here is general. The specifics of your case depend on your service record, your medical evidence, and how the VA reads them. A VA-accredited representative or attorney can give you a clearer picture before you file.
What Counts as a VA-Disability-Eligible Condition?
A condition qualifies for VA disability if three things are true: you have a current diagnosis, something during your service caused or worsened the condition, and there is a medical link (called a nexus) between the two. The list of conditions that fit this framework is enormous and covers nearly every body system.
In practical terms, here is what veterans most often claim:
- Musculoskeletal injuries. Knee, back, shoulder, neck, and joint problems. The single largest category of VA disability claims.
- Hearing loss and tinnitus. The two most-claimed individual conditions. Tinnitus alone affects millions of veterans and pays a flat 10% rating.
- Mental health conditions. PTSD, depression, anxiety, and adjustment disorders, all rated under one general formula for mental disorders.
- Sleep apnea. A common rating tied to weight gain, mental health conditions, or PACT Act respiratory presumptions.
- Toxic exposure conditions. Cancers, respiratory diseases, and other illnesses linked to burn pits, Agent Orange, Camp Lejeune water, and radiation.
- Cardiovascular and endocrine conditions. Heart disease, hypertension, and Type 2 diabetes, especially when tied to Agent Orange or other toxic exposures.
How the VA Organizes Conditions: The 15 Body Systems
Every ratable condition lives somewhere inside the VA Schedule for Rating Disabilities, found in 38 CFR Part 4. The schedule organizes conditions by body system, and each system has its own range of diagnostic codes. The codes run from 5000 to 9999, and the first two digits tell you which system the condition belongs to.
Figure 1: The 15 body systems in the VA Schedule for Rating Disabilities and the diagnostic code range for each.
When the VA assigns your rating, it picks the diagnostic code that most closely matches your condition, then applies the rating criteria for that code. If your condition is not specifically named in the schedule, the VA rates it by analogy under 38 CFR 4.20, using the closest matching code with similar symptoms and impact.
The Most Common VA Diagnostic Codes
Some diagnostic codes come up far more often than others, partly because the conditions are common in service and partly because they are well-documented enough to support strong claims. The table below covers the codes most veterans encounter.
| Diagnostic Code | Condition | Where It Lives | What to Know |
|---|---|---|---|
| DC 6260 | Tinnitus | 38 CFR 4.87 | Maximum 10% rating, regardless of one or both ears. |
| DC 6100 | Hearing loss | 38 CFR 4.85 | Rated 0% to 100% based on a Maryland CNC test and pure tone average. |
| DC 9411 | PTSD | 38 CFR 4.130 | Rated 0%, 10%, 30%, 50%, 70%, or 100% on social and occupational impairment. |
| DC 5237 | Lumbosacral strain | 38 CFR 4.71a | Rated on range of motion and functional loss, 0% to 100%. |
| DC 5256 | Knee, ankylosis | 38 CFR 4.71a | 30% to 60%, depending on angle of fixation. |
| DC 6847 | Sleep apnea | 38 CFR 4.97 | 0%, 30%, 50%, or 100%, with the CPAP requirement carrying a 50% rating. |
| DC 7913 | Diabetes mellitus | 38 CFR 4.119 | 20% to 100%, based on insulin need and complications. |
| DC 7101 | Hypertension | 38 CFR 4.104 | 10% to 60%, based on diastolic and systolic pressures. |
| DC 8045 | TBI residuals | 38 CFR 4.124a | Rated on cognitive, emotional, and physical effects. |
| DC 7800-7805 | Scars (various) | 38 CFR 4.118 | Rated by location, size, painfulness, and stability. |
Source: 38 CFR Part 4, Schedule for Rating Disabilities. Specific rating criteria depend on the severity of the condition.
If you see a different code on your rating decision than what you expected, that is not always a problem. The VA may have applied an analogous code or chosen a code with more favorable criteria. The code itself matters less than whether the rating percentage matches the severity of your condition.
The Five Ways to Establish Service Connection
Most veterans hear about service connection as a single concept, but it is actually five different paths. Your condition only needs to qualify under one of them. Knowing which path fits your case shapes the kind of evidence you need to gather.
Figure 2: The five paths to service connection and the regulation that governs each one.
Direct service connection
Direct service connection is the most common path. You experienced an injury, illness, or event during service that caused or began the condition you have today. To win a direct claim, you need a current diagnosis, evidence of the in-service event in your service treatment records or supporting statements, and a medical opinion linking the two.
Aggravation of a pre-existing condition
If you had a condition before service and it got worse during service, that worsening can be service-connected even though the original condition was not. The key word is beyond. Normal aging or natural progression of the disease does not count. The aggravation has to exceed what the condition would have done on its own.
Secondary service connection
A secondary claim covers a condition that develops because of an existing service-connected disability. A veteran with service-connected diabetes who later develops peripheral neuropathy, kidney disease, or erectile dysfunction can claim those as secondary. A veteran with a service-connected back injury who develops depression because of chronic pain can claim that depression as secondary.
Secondary claims are some of the most overlooked. Many veterans get rated for a primary condition and never realize the related health problems they have developed are also compensable. Each secondary condition gets its own rating, then combines with the primary using VA math.
Presumptive service connection
For some conditions, the VA presumes service caused the problem if you served in the right place at the right time. You do not need to prove the link. The two biggest categories are PACT Act burn pit conditions and Agent Orange conditions, but presumptive lists also cover Camp Lejeune water, radiation exposure, and certain Gulf War syndrome illnesses.
Treatment-caused injury (Section 1151 claims)
If VA medical care or VA vocational rehab caused or worsened a condition, that injury is treated as if it were service-connected under 38 USC 1151. These are rare claims, but they exist for surgical errors, medication problems, and similar issues. The claim must show the injury was not a reasonably foreseeable result of the treatment.
PACT Act Presumptive Conditions: The Largest Expansion in VA History
The PACT Act, signed in August 2022, opened the door for hundreds of thousands of veterans whose claims would have been denied under the old rules. The law added more than 20 condition categories, which translates to over 330 specific medical conditions when you count subtypes.
Figure 3: PACT Act presumptive conditions span burn pit exposure, Agent Orange, Camp Lejeune, radiation, and Gulf War service.
Who qualifies for presumptive status
Two things have to match for a presumptive claim to work: your service has to fit the qualifying location and time period, and your diagnosis has to match an exact name on the VA’s list. “Lung problems” is not enough. “Squamous cell carcinoma of the larynx” is.
The qualifying service locations include:
- Post-9/11 era. Iraq, Afghanistan, Bahrain, Egypt, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Somalia, Syria, the UAE, Uzbekistan, Yemen, Djibouti, and the airspace above these locations, on or after September 11, 2001.
- Gulf War era. The same Southwest Asia theater, plus surrounding waters and airspace, on or after August 2, 1990.
- Vietnam era. Vietnam (1962-1975), plus expanded locations including Thailand, Laos, Cambodia, Guam, American Samoa, and Johnston Atoll for Agent Orange.
- Camp Lejeune. Marine Corps Base Camp Lejeune, North Carolina, between August 1953 and December 1987.
- Radiation exposure sites. Atmospheric nuclear test participation, post-WWII Hiroshima and Nagasaki occupation, and certain cleanup operations.
Why the PACT Act changed approval rates
Before the PACT Act, the VA approved only about 25% of burn pit-related claims. Today, that figure is closer to 80% for PACT Act claims because the presumptive framework removes the burden of proving a medical nexus. If you served in a qualifying place and have a listed condition, the link is assumed.
If you were denied for a condition that is now presumptive, you can refile under a Supplemental Claim. The VA has been actively reviewing previously denied cases as new conditions are added to the presumptive list.
The Pyramiding Rule: Why You Cannot Be Rated Twice for the Same Symptom
Under 38 CFR 4.14, the VA cannot assign separate ratings for the same symptom under multiple diagnostic codes. This is called the rule against pyramiding. Two ankle conditions that both cause limited range of motion get one rating, not two. All mental health conditions (PTSD, depression, anxiety) share a single rating under the General Rating Formula for Mental Disorders, even if you have multiple diagnoses.
Pyramiding errors can hurt you in two ways:
- VA reviewers sometimes rate the same symptom twice by mistake. That seems like good news, but if the VA later catches the error, your rating can drop. If you spot pyramiding in your favor on a recent decision, talk to a VSO before you file any new claims that might trigger a review.
- Veterans sometimes file multiple claims for the same problem. Filing for “limited range of motion of the right knee” and “degenerative arthritis of the right knee” may produce one rating, not two, even if they sound different.
The exception: conditions with truly distinct symptoms can be rated separately, even when they affect the same body system. A back injury that causes both limited motion and radiating nerve pain can get a rating for the back and a separate rating for the nerve, because they are different impairments.
Special Monthly Compensation (SMC): When the Standard Schedule Is Not Enough
Some service-connected disabilities are so severe that the basic rating schedule cannot fully compensate them. For those cases, the VA pays Special Monthly Compensation (SMC) on top of, or in place of, the standard rate. SMC is most often awarded for combinations of severe injuries, sensory loss, and conditions that require regular help from another person.
| SMC Tier | What It Covers |
|---|---|
| SMC-K | Loss or loss of use of one creative organ, one hand, one foot, an eye, both buttocks, or deafness in both ears at certain levels. Adds $139.87 per month to the basic rate in 2026. |
| SMC-L | More severe loss combinations, including blindness in both eyes, paraplegia, or aid and attendance need. |
| SMC-M to R | Increasingly severe combinations, replacing the basic rate with higher amounts. |
| SMC-S | Housebound rate. Veterans rated 100% with one additional 60% rating, or who are permanently housebound. |
| SMC-T | Aid and attendance are needed due to a service-connected traumatic brain injury (TBI). |
SMC awards are not automatic. You have to claim them, and the medical evidence has to match the specific criteria. Many veterans qualify for SMC but never receive it because they never asked. Reviewing a current rating decision with an experienced representative is the most reliable way to find out if you are missing an SMC entitlement.
Filing a Strong Claim: What Evidence Wins
The strength of your claim depends on the quality of the evidence you submit. Three pieces matter most: the current diagnosis, the in-service evidence, and the nexus opinion.
- Current medical diagnosis. A formal diagnosis from a qualified provider, supported by recent treatment records. The VA cannot rate a condition that is not in your medical record.
- In-service event evidence. Service treatment records, deployment orders, performance evaluations, awards citations, or buddy statements that document the injury, exposure, or stressor.
- Medical nexus opinion. A written statement from a qualified medical provider explaining how, in their professional opinion, your current condition is at least as likely as not connected to your service. The phrase “at least as likely as not” matters because it is the legal standard the VA uses.
If your claim has been denied for lack of evidence on any one of these three pieces, the path forward is usually to gather what is missing and file a Supplemental Claim. The appeal options after a denial include three formal review tracks, each with its own timeline and evidentiary rules.
Frequently Asked Questions About VA Disability Conditions
How many VA disability conditions are there?
The VA Schedule for Rating Disabilities (38 CFR Part 4) names roughly 900 conditions directly. When you include analogous conditions (rated by similarity to a listed condition) and equivalent conditions (the same condition under a different name), the catalog is over 1,000 ratable VA disability conditions.
What is the easiest VA disability to claim?
Tinnitus (DC 6260) is statistically the most-claimed and most-approved condition. It pays a flat 10% rating, requires no audiogram for the diagnosis, and is presumed credible if a veteran reports the symptom and has noise exposure in service. Hearing loss is close behind.
Can I claim a condition that is not on the VA’s list?
Yes. Under 38 CFR 4.20, the VA can rate a condition by analogy using the diagnostic code that most closely matches it. The analogous code uses a built-up four-digit number where the first two digits identify the body system and the last two digits are 99 (for example, 8099 for an unlisted neurological condition rated like 8100, migraines).
What is a VA presumptive condition?
A presumptive condition is a condition the VA assumes is service-connected if you served in a specific place during a specific time. PACT Act burn pit cancers, Agent Orange illnesses, Camp Lejeune water-related conditions, certain radiation cancers, and Gulf War undiagnosed illnesses are all presumptive. You still need a current diagnosis, but you do not need a nexus letter.
How do I find my VA diagnostic code?
Your VA rating decision letter lists the diagnostic code for every service-connected condition. You can also see your codes by logging in to VA.gov and viewing your disability ratings. If you do not have a copy of your decision, you can request your VA claims file (called your C-file) through the VA.
Can mental health conditions be service-connected?
Yes. PTSD (DC 9411) is the most common mental health rating, but anxiety, depression, adjustment disorder, and other conditions can be service-connected as well. All mental disorders share one rating under the General Rating Formula for Mental Disorders, evaluated on social and occupational impairment rather than the specific diagnosis.
What is a secondary service-connected disability?
A secondary disability is a new condition caused or worsened by an existing service-connected condition. The classic example is service-connected diabetes leading to peripheral neuropathy, retinopathy, kidney disease, or erectile dysfunction. Each secondary condition gets its own rating, which then combines with the primary using VA math.
Will my VA disability ever be reviewed?
Yes, in some cases. The VA can schedule a re-examination (sometimes called a routine future exam) if your condition is expected to improve. Conditions that are stable, total, or have been rated for 5 or more years are protected from most reductions. Ratings held for 20 or more years are nearly protected for life, absent fraud.
The Bottom Line
The VA disability system is wider and more flexible than most veterans realize. Over 1,000 conditions are ratable, five different paths can establish service connection, and the PACT Act keeps adding new presumptive conditions every year. If you assumed you were not eligible because your condition seemed minor, was not directly tied to a combat injury, or was denied years ago, it is worth taking another look.
Start by listing every health condition you have today, then check whether any of them appear on the VA Schedule for Rating Disabilities or the PACT Act presumptive list. If a connection seems plausible, gather your service records and current medical records, then file an Intent to File to lock in your effective date while you build the rest of the evidence. Free help from VSOs is available at every step.
If your claim has been denied, your rating feels too low for the severity of your condition, or you are dealing with a complex claim involving multiple secondary conditions, working with experienced VA disability attorneys can shift the outcome significantly. They work on contingency, so the consultation costs nothing and any legal fees come out of past-due benefits when the case wins.
