NPCR-internal code system representing the three ways by which a Gleason score can be reported for targeted biopsies, based on NPCR Variabelbeskrivning variable D_RiktGleasTyp (Gleason angivet för = 'Gleason reported as'). This variable is unique to targeted biopsies because MRI-guided targeted sampling can produce multiple lesion-specific Gleason scores, requiring a convention for which value to report at the targeted-biopsy-level summary.

Applicable only to NPCRGleasonScoreTargetedBiopsyObservation — systematic and unclear biopsies do not have equivalent reporting conventions because they yield a single Gleason assessment per sample group.

Historical note (per Variabelbeskrivning Kommentar): Option 1 was hidden 2023-06-19, replaced by option 3 (highest Gleason) as the preferred reporting method. Option 1 is retained for historical data compatibility.

Clinical context (per NPCR Manual page 17): 'I första hand rapporteras Gleasongrad med den högsta gleasonsumman i en enskild biopsi, om detta inte anges i PAD-svaret rapporteras den sammanfattande Gleasongraden i de riktade biopsierna.' ('First preference is to report the Gleason with the highest Gleason sum in a single biopsy; if not stated in the PAD, report the summary Gleason in the targeted biopsies.')

Terminology binding rationale: NPCR documentation does not provide an international code system binding for this reporting convention. This NPCR-internal CodeSystem preserves Variabelbeskrivning Listvärden values directly.