CH4=902210, PO=907106, GRAM=901107, etc. Falls back to COD_EXAMEN if empty. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
CH4=902210, PO=907106, GRAM=901107, etc. Falls back to COD_EXAMEN if empty. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>