schizophrenia reaction, undifferentiated type, chronic, moderate, treated, slightly improved, manifested by poor interpersonal relationships, poor motivation, withdrawn behavior, chronic depression, paranoid ideation and inappropriate affect, minimal stress, routine military duty; moderate predisposition, lifelong history of poor interpersonal relationships; marked impairment.

R. at 29; see also R. at 33. The medical board recommended that appellant be "separated from military service for [an] EPTS [existed prior to service] condition." R. at 30; see also R. at 33. Appellant was honorably discharged for medical reasons on February 25, 1970. R. at 1.

On March 27, 1970, a VA regional office (RO) granted service connection for schizophrenic reaction, undifferentiated type, rated as 10% disabling. R. at 94.

In June 1971, in connection with a claim for an increase in the 10% rating, appellant was examined by the VA. R. at 36-40. The examination report stated this diagnosis:

Schizophrenic Reaction, undifferentiated type with paranoid coloring, manifested by confused thinking and difficulty in concentration with perplexity, ideas of reference, fear states and a disturbance of affect. Currently the mental illness is active and he was advised to seek hospitalization and medication. He is competent to handle VA funds and that's about all.

R. at 39. On July 30, 1971, the RO sent notification to appellant that it had denied the claim for an increase for his service-connected schizophrenia, which continued to be rated 10% disabling. R. at 96; see R. at 95.