Yes. Intimacy is a normal part of life and most people with an ICD can resume sexual activity when they feel physically and emotionally ready. There is no standard waiting period, though your cardiologist or cardiac nurse may give you specific guidance based on your individual situation.
If you have concerns about intimacy, the risk of a shock during sex, or the impact on your relationship, these are legitimate topics to raise with your clinical team. Many people find them difficult to bring up, but your cardiac nurse or cardiologist will have had these conversations before. You can also find peer support through SCA UK.