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6841
§ 4.97 Schedule of ratings—respiratory system.

Spinal cord injury with breathing problems

A spinal cord injury that affects the ability to breathe normally.

What the rating means

Spinal cord injury with respiratory insufficiency is rated under the General Rating Formula for Restrictive Lung Disease, which covers diagnostic codes 6840 through 6845. VA uses results from breathing tests and clinical findings to assign one of four ratings: 100%, 60%, 30%, or 10%. The regulation also allows VA to rate the primary disorder instead, if that produces a more accurate result.

At 100%, you meet at least one of several serious markers: FEV-1 below 40% of predicted, FEV-1/FVC ratio below 40%, DLCO below 40% predicted, maximum exercise oxygen consumption below 15 ml/kg/min with cardiac or respiratory limitation, cor pulmonale, right ventricular hypertrophy, pulmonary hypertension shown by echocardiogram or cardiac catheterization, an episode of acute respiratory failure, or a need for outpatient oxygen therapy. At 60%, breathing test values fall in the 40–55% range. At 30%, they fall in the 56–70% range for FEV-1 or FEV-1/FVC, or 56–65% for DLCO. At 10%, values fall in the 71–80% range for FEV-1 or FEV-1/FVC, or 66–80% for DLCO.

Evidence that helps

Pulmonary function test reports are central to rating this condition. VA looks specifically at FEV-1 (the volume of air you can force out in one second), the FEV-1/FVC ratio, and DLCO measured by the single breath method. Each of these values is compared to a predicted normal, and the percentage of predicted tells VA which rating level applies. Make sure test reports include both the raw numbers and the percent-of-predicted figures.

For the 100% level, records showing cor pulmonale, right ventricular hypertrophy, or pulmonary hypertension — documented by echocardiogram or cardiac catheterization — satisfy the criteria without relying on spirometry alone. Records of hospital admissions for acute respiratory failure, or a prescription and use of outpatient oxygen therapy, also support a 100% rating. Exercise testing that records maximum oxygen consumption in ml/kg/min, with a note that the limitation is cardiac or respiratory in origin, supports the 100% or 60% levels. Statements from you or those who care for you describing how breathing problems affect daily activity and work can help VA understand the real-world impact of your test results.

Secondary conditions

Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.