In C-CDAs in the wild there are often missing or nulled time stamps on/in every of the PAMI+ domains.

Guidance on how to handle when timing/timestamps is/are missing or as is the most common case missing (or nulled) in the entries , but present in the section text. This is particularly common with medications where the only detail is in the Sigs (text reference).

Another place where timestamps are commonly nulled is on Problem entries - where the only time present is on the concerns act. The Problem mapping in this IG does not take into consideration the Concern act. The same is true of allergy and allergy concern act timing.

Missing time heuristic should be added per each PAMI+