Would excessive intrusive thoughts of harm be considered harm ocd, even if you don’t do anything?

by not doing anything, do you mean compulsions ?

Yes, it’s Pure O OCD, so instead of physical compulsions, you’re likely engaging in mental ones. This could be avoiding things that might trigger you, mentally ruminating to try & find meaning or certainty in the thoughts about whether or not you would cause harm, neutralizing the thoughts by forcing good ones in their place, & literally anything else that mentally alleviates the anxiety/distress.

You have to remember EVERYONE gets intrusive thoughts. People with OCD get them alot more frequently. I believe OCD is on a spectrum from mild to severe so your anxiety level and frequency of thoughts would land somewhere between there. People with pure O usually don't have physical compulsions only mental ones.

A compulsion is to alleviate anxiety so if you talk yourself out of it or calm yourself down there really isn't a need to have a compulsion. For my blasphemy OCD I would be talking to god and my intrusive thought would say repeatedly "F#$k God" and I would have to beg and plead with God saying that's not me which was a compulsion. For my hocd Its very hard to use a public restroom without high amounts of anxiety so I avoid them which is another compulsion.

Some would say having to talk yourself out of it is a compulsion