In pathology we call issue a "preliminary autopsy report" within the first 48 hours and a "final autopsy report" within 30-60 days. A final report may be followed by additional addenda (new information, e.g. toxicology reports) and amendments (significant changes to the original report, e.g. "I was wrong")
Yeah, the issue really is that post-mortem's been adopted as a noun.
This is a de facto post-mortem <thing> (allowing the adoption of 'mortem' to mean problem, but not the phrase as noun) just perhaps not the full analysis it's been taken to imply.
