A 15-year-old girl was shot and wounded outside a Harlem NYCHA complex, police said Thursday. The teen was blasted in the right thigh on Adam Clayton Powell Jr. Blvd. near W. 142nd St. outside NYCHA’s Hamilton Houses about 8:20 p.m. Wednesday, cops said. She ran 10 blocks to W. 133rd St. and St. Nicholas Ave. after being shot before getting help, a police source said. Medics took her to Harlem Hospital in stable condition. It was unclear if she was the intended target and no arrests have been made.