The VA rates pulmonary emphysema under Diagnostic Code 6603 at 10%, 30%, 60%, or 100%. In 2026 those tiers pay $180.42, $552.47, $1,435.02, and $3,938.58 per month for a veteran with no dependents. Emphysema is on the PACT Act burn pit presumptive list, so a veteran who served in a covered location during a covered period does not have to prove service caused it.
The part that decides most emphysema claims is not FEV-1. It is DLCO, the diffusion number. Emphysema destroys alveoli, which wrecks gas exchange before it wrecks airflow, so a veteran can walk out of a pulmonary function test with a respectable FEV-1 and still meet the criteria for 30% or 60% on the diffusion number alone. If your C&P exam skipped DLCO, your rating is probably wrong.
Why DLCO Matters More for Emphysema Than for Other Lung Codes
DC 6600 (chronic bronchitis), DC 6603 (emphysema), and DC 6604 (COPD) use the identical rating table in 38 CFR 4.97. Same percentages, same thresholds, same three measurements. That is why a generic "respiratory rating" article is nearly useless for an emphysema claim. What separates emphysema is which of those three measurements is likely to be abnormal in your case.
- FEV-1 measures how much air you can force out in one second. It mostly reflects the larger airways, which is why it can stay near normal in early and moderate emphysema.
- FEV-1/FVC is the obstruction ratio. It drops as emphysema progresses, but often later than the diffusion number does.
- DLCO (SB) measures how well carbon monoxide crosses from your lungs into your blood in a single breath. Emphysema physically destroys the alveolar walls where that exchange happens, so DLCO falls early and keeps falling.
In the medical literature, emphysema is one of the most common causes of an isolated reduction in DLCO, and the reduction commonly appears before obstruction shows up on spirometry. A low DLCO paired with obstruction points toward emphysema rather than chronic bronchitis. For a claim, that translates into one practical instruction: make sure DLCO is tested, recorded in the exam report, and read against the table below.
Emphysema Rating Criteria (Diagnostic Code 6603)
You do not have to meet all three measurements. Meeting any single criterion at a tier qualifies you for that tier, and the VA assigns the highest tier you meet.
| Rating | FEV-1 (% predicted) | FEV-1/FVC | DLCO (SB) (% predicted) | Other qualifying criteria |
|---|
| 10% | 71% to 80% | 71% to 80% | 66% to 80% | None |
| 30% | 56% to 70% | 56% to 70% | 56% to 65% | None |
| 60% | 40% to 55% | 40% to 55% | 40% to 55% | Maximum oxygen consumption of 15 to 20 ml/kg/min with cardiorespiratory limitation |
| 100% | Less than 40% | Less than 40% | Less than 40% | Maximum exercise capacity under 15 ml/kg/min oxygen consumption with cardiac or respiratory limitation; or cor pulmonale (right heart failure); or right ventricular hypertrophy; or pulmonary hypertension shown by echocardiogram or cardiac catheterization; or episodes of acute respiratory failure; or requires outpatient oxygen therapy |
Note the gap at 30%. FEV-1 and the FEV-1/FVC ratio both run 56% to 70%, but DLCO runs 56% to 65%. A DLCO of 66% to 70% predicted lands at 10%, not 30%. That five-point band is a common source of confusion when veterans compare their numbers against the table.
The 100% row deserves a second read. Six of its qualifying criteria have nothing to do with a PFT number. Outpatient oxygen therapy alone meets the 100% criteria. So does documented cor pulmonale, right ventricular hypertrophy, or pulmonary hypertension confirmed by echo or catheterization. Advanced emphysema produces exactly these complications, and they frequently sit in a VA medical record while the rating decision cites only the spirometry.
The One Rating Rule: You Get a Single Respiratory Evaluation
This is the rule that costs emphysema claimants the most money, and almost nobody hears about it until the decision letter arrives.
Under 38 CFR 4.96(a), ratings under diagnostic codes 6600 through 6817 and 6822 through 6847 will not be combined with each other. Instead, a single rating is assigned under the diagnostic code that reflects the predominant disability, with elevation to the next higher evaluation where the severity of the overall disability warrants it.
In practice that means:
- Emphysema (6603) and COPD (6604) do not stack. Neither do emphysema and chronic bronchitis (6600).
- Emphysema and asthma (6602) do not stack.
- Emphysema and obstructive sleep apnea (6847) do not stack either, because 6847 falls inside the 6822 to 6847 range. The Board of Veterans' Appeals has repeatedly read 4.96(a) as flatly prohibiting separate evaluations for a lung code and sleep apnea. A veteran with a 50% CPAP rating and diagnosed emphysema is generally getting one rating, not two.
So which code label should you argue for? Since 6600, 6603, and 6604 share the same criteria, the label by itself does not change the check. Two things do:
- Which condition is predominant. If sleep apnea is in the picture, the predominant-disability determination decides whether you are rated on the sleep apnea schedule (where a CPAP requirement is 50%) or the PFT schedule (where a 40% to 55% DLCO is 60%). Run both and argue for the one that reflects your actual impairment, backed by your pulmonologist.
- The elevation clause. The regulation allows elevation to the next higher evaluation when overall severity warrants it. If you have emphysema plus another respiratory condition and the combined burden is worse than the predominant code alone captures, ask for elevation in writing and point to 4.96(a) by name. Rating decisions routinely apply the anti-combining half of the rule and skip the elevation half.
For the companion codes, see our breakdowns of the VA disability rating for bronchitis and the VA disability rating for COPD.
Emphysema and the PACT Act
Emphysema is a listed presumptive condition for burn pit and other toxic exposure under the PACT Act. If you qualify, the VA presumes your service caused the condition and you do not have to submit a medical nexus opinion linking the two.
Per the VA PACT Act guidance, the presumption of exposure covers service in these locations:
| Service on or after | Locations |
|---|
| September 11, 2001 | Afghanistan, Djibouti, Egypt, Jordan, Lebanon, Syria, Uzbekistan, Yemen, or the airspace above these locations |
| August 2, 1990 | Bahrain, Iraq, Kuwait, Oman, Qatar, Saudi Arabia, Somalia, the United Arab Emirates, or the airspace above these locations |
Other respiratory conditions on the same presumptive list include chronic bronchitis, COPD, asthma diagnosed after service, chronic rhinitis, chronic sinusitis, constrictive or obliterative bronchiolitis, granulomatous disease, interstitial lung disease, pleuritis, pulmonary fibrosis, and sarcoidosis. Respiratory cancer of any type is also presumptive.
The presumption removes the nexus requirement. It does not set your percentage. You still need a current diagnosis and a PFT, and the percentage still comes off the DC 6603 table. Our PACT Act presumptive conditions guide and burn pit claims guide cover the filing details.
2026 Payment Amounts for an Emphysema Rating
VA compensation rose 2.8% effective December 1, 2025, matching the Social Security cost of living adjustment. These are the current VA rates for a veteran with no dependents.
| Rating | Monthly (veteran alone) | Approximate annual |
|---|
| 10% | $180.42 | $2,165 |
| 30% | $552.47 | $6,630 |
| 60% | $1,435.02 | $17,220 |
| 100% | $3,938.58 | $47,263 |
Veterans rated 30% or higher receive additional compensation for a spouse, children, and dependent parents. VA disability compensation is not taxed.
The PFT Rules That Decide Your Number
Paragraph (d) of 38 CFR 4.96 governs how the testing itself is handled. These rules are worth knowing before your C&P exam, because several of them are regularly applied incorrectly.
- PFTs are required to evaluate DC 6603, with exceptions. If maximum exercise capacity testing already shows 20 ml/kg/min or less, or the record documents pulmonary hypertension, cor pulmonale, or right ventricular hypertrophy, or you have had an episode of acute respiratory failure, or you already require outpatient oxygen therapy, the rating can be assigned without a PFT.
- If DLCO is not available, the rating is based on the alternative criteria, but only when the examiner explains why the DLCO test would not be useful or valid. A DLCO that was simply never ordered is not the same thing as a DLCO that was properly excluded. For emphysema specifically, a missing DLCO with no explanation is grounds to request a new exam.
- Post-bronchodilator studies are required unless pre-bronchodilator results were normal or the examiner documents why post-bronchodilator testing should not be done.
- Post-bronchodilator results are used for rating, unless the pre-bronchodilator results were better, in which case the pre-bronchodilator values apply.
- When different PFT results point to different ratings, the VA uses the result the examiner states most accurately reflects the severity of your disability. That sentence is why a one-line comment from your own pulmonologist can move a rating tier.
- If both FEV-1 and FVC are above 100%, no compensable rating is assigned based on a decreased FEV-1/FVC ratio alone.
How to File an Emphysema Claim
- Get a current diagnosis in writing. "Shortness of breath" is not a diagnosis. You need emphysema documented by a physician, ideally supported by imaging and a PFT.
- Get a complete PFT with DLCO. Ask specifically for spirometry with pre and post bronchodilator values plus DLCO (SB). Bring a copy to the C&P exam rather than assuming the examiner has it.
- Confirm your exposure pathway. If you served in a PACT Act location during a covered period, say so on the application and attach the deployment orders or DD-214 pages showing it. If you do not qualify for a presumption, you need a nexus opinion connecting emphysema to a specific in-service exposure or event.
- File on VA Form 21-526EZ. Submit online at VA.gov, by mail, or with a Veterans Service Organization representative. Filing an intent to file first locks in your effective date while you gather evidence.
- List every complication separately in the description. Oxygen therapy, pulmonary hypertension, cor pulmonale, right ventricular hypertrophy, and any hospitalization for respiratory failure each independently support 100%. Name them and cite where they appear in your records.
- Attend the C&P exam and read the report. Request a copy afterward. If DLCO is missing, if only pre-bronchodilator values were recorded, or if the examiner ignored an oxygen prescription, those are specific, correctable errors to raise on appeal.
Where Emphysema Claims Go Wrong
Rated on FEV-1 only. The single most common failure. Emphysema damages diffusion first. A claim decided on spirometry without DLCO understates the disease by design.
A good day at the exam. One PFT captures one morning. If your treatment records show consistently worse numbers, submit them and ask the rater to consider the full picture under 4.96(d)(3) and (d)(6).
Oxygen therapy sitting unread in the file. Outpatient oxygen therapy meets the 100% criteria on its own. If you use home oxygen and are rated below 100%, that is a direct appeal argument.
Accepting a single rating without asking for elevation. The anti-combining rule and the elevation clause are the same sentence in the regulation. Raters apply the first half far more often than the second.
Frequently Asked Questions
What is the VA disability rating for emphysema?
Emphysema is rated under Diagnostic Code 6603 at 10%, 30%, 60%, or 100%, based on pulmonary function test results. Meeting any one of the FEV-1, FEV-1/FVC, or DLCO thresholds at a tier qualifies you for that tier. A requirement for outpatient oxygen therapy, cor pulmonale, right ventricular hypertrophy, pulmonary hypertension, or an episode of acute respiratory failure meets the 100% criteria regardless of PFT numbers.
Is emphysema a presumptive condition under the PACT Act?
Yes. Emphysema is on the burn pit and toxic exposure presumptive list. Veterans who served in a covered location on or after September 11, 2001, or on or after August 2, 1990, depending on the country, do not have to prove service connection.
Can I get separate VA ratings for emphysema and COPD?
No. Under 38 CFR 4.96(a), respiratory ratings in the 6600 to 6817 and 6822 to 6847 ranges are not combined with each other. You receive one rating under the code reflecting the predominant disability, with possible elevation to the next higher level if overall severity warrants it. This also applies to emphysema and sleep apnea.
How much does a 60% emphysema rating pay in 2026?
$1,435.02 per month for a veteran with no dependents, effective December 1, 2025. Veterans rated 30% or higher receive more for qualifying dependents. The payment is tax free.
What DLCO percentage gets a 60% rating?
A DLCO (SB) of 40% to 55% of predicted value meets the 60% criteria under DC 6603. Below 40% predicted meets the 100% criteria.
Does the VA rate emphysema based on smoking history?
Tobacco use during service cannot itself be the basis for service connection for claims filed after June 9, 1998, under federal law. But smoking history does not disqualify a claim built on another pathway, such as PACT Act burn pit exposure or a service-connected condition that caused or aggravated the emphysema. The VA evaluates the claimed cause, not your habits.
Can emphysema qualify for TDIU?
Yes. If emphysema keeps you from maintaining substantially gainful employment, you can apply for Total Disability based on Individual Unemployability using VA Form 21-8940, which pays at the 100% rate. TDIU generally requires one condition rated at 60% or more, or a combined rating of 70% with one condition at 40% or more, though the VA can consider extraschedular TDIU below those thresholds.
How long does an emphysema claim take?
Timelines vary by regional office and evidence completeness. Claims that require a C&P exam and outside records typically take several months. Submitting a complete PFT with DLCO and all treatment records up front is the single biggest factor you control.
