F52: Sexual dysfunction, not caused by organic disorder or disease

F52.3: Orgasmic dysfunction

Sex involves different phases that lead to mental and physical changes. First of all there is excitement, at which point the person wants sex. Then, for example, one’s blood pressure rises and breathing gets faster. The external genital organs also swell up in both the man and the woman. When the excitement reaches a certain point, there is an orgasm. After the sexual high, one feels satisfied and the body relaxes. The blood pressure falls, for example, breathing returns to normal, and one may feel tired.

The high point of sexual excitement is the orgasm. This involves a physical reaction and an intense feeling of desire. In your case this sexual high is not occurring or it is taking a long time. It may also be that you are only arriving at the high in particular situations.