Active tuberculosis infection of the lungs with extensive disease spread.
To support a 100% rating under this code, the evidence needs to show that your pulmonary tuberculosis is active and far advanced. Medical records confirming a current, active diagnosis are central to this — for example, positive sputum cultures or smears, chest imaging such as X-rays or CT scans showing extensive disease, and physician notes describing the stage and activity of the disease. Pulmonary function test results and radiology reports that document the extent of lung involvement help establish that the disease qualifies as far advanced. Statements from treating physicians describing the ongoing, active nature of your condition and its severity also support the criteria. Records showing the condition is chronic rather than a past episode are equally relevant.
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.
