A procedure activity (templateId 2.16.840.1.113883.10.20.1.29) SHALL be represented with Act, Observation, or Procedure. The value for "[Act | Observation | Procedure] / moodCode" in a procedure activity SHALL be "EVN" 2.16.840.1.113883.5.1001 ActMood STATIC. A procedure activity SHALL contain at least one [Act | Observation | Procedure] / id. A procedure activity SHALL contain exactly one [Act | Observation | Procedure] / statusCode. A procedure activity SHALL contain exactly one [Act | Observation | Procedure] / code. A procedure activity SHOULD contain exactly one [Act | Observation | Procedure] / effectiveTime. The value for “[Act | Observation | Procedure] / code” in a procedure activity SHOULD be selected from LOINC (codeSystem 2.16.840.1.113883.6.1) or SNOMED CT (codeSystem 2.16.840.1.113883.6.96).