autorreportarse

Used in workplace, compliance, medical, and research contexts for someone reporting information about themselves — an employee self-reporting an incident, a patient self-reporting symptoms, a study relying on self-reported data.

• La empresa pide a los empleados autorreportarse si llegan tarde. — The company asks employees to self-report if they arrive late.
• El estudio se basa en datos que los pacientes autorreportan. — The study is based on data patients self-report.
• Es recomendable autorreportarse ante cualquier síntoma sospechoso. — It's advisable to self-report any suspicious symptoms.

A fairly technical, institutional word — in casual conversation, native speakers would just say informar or avisar rather than reaching for autorreportarse.