Taking the advice from this wonderful thread: DS has been complete and on hold since 3/29/21. We called the doctor's office today and they said they didn't have anything they were told to follow up on with the CIV Team. So we called the CIV team and they told us that the doctor's office hadn't recorded DS's sitting height. Also, DS needed to send CIV team an email that he had his wisdom teeth extracted with no residual issues. The wisdom teeth issue came up at the medical appt because he forgot that it's considered surgery so he didn't put it on his exam forms. Since his exam status says "no additional action is required on your behalf", there was no way to know they needed this disclaimer without calling to find out.
So DS has emailed CIV with that disclaimer, and CIV team has stated they'll reach out to the doctor's office to get the sitting height. Hopefully that will close the loop on this.
Take away: If it's been awhile, call the folks involved since there may be actions needed on your part, notwithstanding the status message.