{ "resourceType" : "CodeSystem", "id" : "snomed-extension-lt-colorectal", "language" : "lt", "text" : { "status" : "generated", "div" : "

Lithuanian

Generated Narrative: CodeSystem snomed-extension-lt-colorectal

Language: en

This case-sensitive code system https://tx.hl7.lt/fhir/CodeSystem/snomed-extension-lt-colorectal defines the following codes:

CodeDisplayDefinition
paris-classification Paris endoscopic classificationParis endoscopic classification of superficial neoplastic lesions
nice-classification NICE classificationNBI International Colorectal Endoscopic classification
polyp-access Access to polypDifficulty of access to the polyp during endoscopy
smsa-score SMSA scoreSize, Morphology, Site, and Access score for polypectomy difficulty
predicted-histology Predicted histologyPredicted histological type based on endoscopic appearance
paris-Is Paris 0-Is (sessile/polypoid)
paris-Isp Paris 0-Isp (semi-pedunculated)
paris-Ip Paris 0-Ip (pedunculated)
paris-IIa Paris 0-IIa (slightly elevated)
paris-IIb Paris 0-IIb (flat)
paris-IIc Paris 0-IIc (slightly depressed)
lst-g-h LST-G-H (Laterally spreading, granular type, homogeneous)Equivalent to Paris 0-IIa
lst-g-nm LST-G-NM (Laterally spreading, granular type, non-homogeneous)Equivalent to Paris 0-IIa + Is
lst-ng-fe LST-NG-FE (Laterally spreading, non-granular type, flat elevation)Equivalent to Paris 0-IIa
lst-ng-pd LST-NG-PD (Laterally spreading, non-granular type, depressed)Equivalent to Paris 0-IIa + IIc
nice-1 NICE Type IHyperplastic/sessile serrated lesion
nice-2 NICE Type IIAdenoma (low/high grade dysplasia)
nice-3 NICE Type IIIDeep submucosal invasive cancer
nice-not-evaluated NICE Not evaluated
access-easy EasyEasy access to the polyp. SMSA scale: 1 point.
access-heavy HeavyDifficult access to the polyp. SMSA scale: 3 points.
budding-bd0 No tumor budding (Bd0)0 buds per 20X field
budding-bd1 Bd1 (1-4 / 20X RL)Low tumor budding: 1-4 buds per 20X field
budding-bd2 Bd2 (5-9 / 20X RL)Intermediate tumor budding: 5-9 buds per 20X field
budding-bd3 Bd3 (10+ / 20X RL)High tumor budding: 10 or more buds per 20X field
budding-invaluable InvaluableTumor budding cannot be assessed
pdc-none No poorly differentiated clusters
pdc-g1 PDC-G1 (1-4 / 20X RL)
pdc-g2 PDC-G2 (5-9 / 20X RL)
pdc-g3 PDC-G3 (10+ / 20X RL)
pdc-invaluable PDC Invaluable
mmrp-normal Normal expression (MMR proficient, MSS)
mmrp-loss Loss of expression (MMR deficient, MSI)
mmrp-invaluable MMRP Invaluable
mmrp-postponed MMRP Postponed
mmrp-undefined MMRP Undefined (MSS)
mol-postponed PostponedMolecular test has been postponed
mol-detected Detected mutationMutation has been detected
mol-not-detected Undefined mutationNo mutation detected / undefined
mol-set Set (MSI)MSI status has been established
msi-test MSI (Microsatellite instability study)Microsatellite instability study. KLTN code: XLT00915-2
kras-test KRAS mutation testKRAS gene mutation analysis
nras-test NRAS mutation testNRAS gene mutation analysis
braf-v600e-test BRAF V600E mutation testStudy of BRAF gene V600 variants. KLTN code: XLT00914-5
haggitt-0 Haggitt 0
haggitt-1 Haggitt 1
haggitt-2 Haggitt 2
haggitt-3 Haggitt 3
haggitt-4 Haggitt 4
kikuchi-sm1 Sm1 according to Kikuchi
kikuchi-sm2 Sm2 according to Kikuchi
kikuchi-sm3 Sm3 according to Kikuchi
invasion-invaluable Invasion depth invaluable
prep-split-two-day Two-day split preparationTwo-day split-dose bowel preparation protocol
prep-same-day Same-day non-split preparationSame-day non-split bowel preparation protocol
polypectomy-snare Snare/loopPolypectomy performed using a snare or loop
polypectomy-forceps ForcepsPolypectomy performed using forceps
polypectomy-hot Hot techniquePolypectomy using electrocautery (hot)
polypectomy-cold Cold techniquePolypectomy without electrocautery (cold)
resection-en-bloc En bloc resectionComplete removal of lesion in one piece
resection-piecemeal Piecemeal resectionRemoval of lesion in multiple fragments
lumen-air Air insufflationColonic lumen distension using air
lumen-water Water immersionColonic lumen distension using water
lumen-co2 CO2 insufflationColonic lumen distension using carbon dioxide
hydro-saline Normal salineSubmucosal injection of normal saline for lesion lifting
hydro-adrenaline AdrenalineSubmucosal injection of adrenaline for lesion lifting
hydro-methylene-blue Methylene blueSubmucosal injection of methylene blue for lesion lifting
hydro-gelofusine GelofusineSubmucosal injection of Gelofusine for lesion lifting
bleeding-clip Hemostatic clippingBleeding control using hemostatic clips
bleeding-adrenaline-injection Adrenaline injectionBleeding control using local adrenaline injection
bleeding-coagulation Thermal coagulationBleeding control using thermal coagulation
bleeding-other Other bleeding control methodOther method of bleeding control not specified above
" }, "url" : "https://tx.hl7.lt/fhir/CodeSystem/snomed-extension-lt-colorectal", "version" : "0.0.1", "name" : "SnomedExtensionLtColorectalCS", "title" : "SNOMED CT Extension for Colorectal Screening", "status" : "active", "experimental" : false, "date" : "2026-04-13T12:42:10+00:00", "publisher" : "Lithuanian Medical Library", "contact" : [{ "name" : "Lithuanian Medical Library", "telecom" : [{ "system" : "url", "value" : "https://medicinosnk.lt" }, { "system" : "email", "value" : "info@medicinosnk.lt" }] }], "description" : "Extension CodeSystem for concepts used in the Lithuanian colorectal cancer screening program that are not available in SNOMED CT.", "jurisdiction" : [{ "coding" : [{ "system" : "urn:iso:std:iso:3166", "code" : "LT" }] }], "caseSensitive" : true, "content" : "complete", "count" : 72, "concept" : [{ "code" : "paris-classification", "display" : "Paris endoscopic classification", "definition" : "Paris endoscopic classification of superficial neoplastic lesions" }, { "code" : "nice-classification", "display" : "NICE classification", "definition" : "NBI International Colorectal Endoscopic classification" }, { "code" : "polyp-access", "display" : "Access to polyp", "definition" : "Difficulty of access to the polyp during endoscopy" }, { "code" : "smsa-score", "display" : "SMSA score", "definition" : "Size, Morphology, Site, and Access score for polypectomy difficulty" }, { "code" : "predicted-histology", "display" : "Predicted histology", "definition" : "Predicted histological type based on endoscopic appearance" }, { "code" : "paris-Is", "display" : "Paris 0-Is (sessile/polypoid)" }, { "code" : "paris-Isp", "display" : "Paris 0-Isp (semi-pedunculated)" }, { "code" : "paris-Ip", "display" : "Paris 0-Ip (pedunculated)" }, { "code" : "paris-IIa", "display" : "Paris 0-IIa (slightly elevated)" }, { "code" : "paris-IIb", "display" : "Paris 0-IIb (flat)" }, { "code" : "paris-IIc", "display" : "Paris 0-IIc (slightly depressed)" }, { "code" : "lst-g-h", "display" : "LST-G-H (Laterally spreading, granular type, homogeneous)", "definition" : "Equivalent to Paris 0-IIa" }, { "code" : "lst-g-nm", "display" : "LST-G-NM (Laterally spreading, granular type, non-homogeneous)", "definition" : "Equivalent to Paris 0-IIa + Is" }, { "code" : "lst-ng-fe", "display" : "LST-NG-FE (Laterally spreading, non-granular type, flat elevation)", "definition" : "Equivalent to Paris 0-IIa" }, { "code" : "lst-ng-pd", "display" : "LST-NG-PD (Laterally spreading, non-granular type, depressed)", "definition" : "Equivalent to Paris 0-IIa + IIc" }, { "code" : "nice-1", "display" : "NICE Type I", "definition" : "Hyperplastic/sessile serrated lesion" }, { "code" : "nice-2", "display" : "NICE Type II", "definition" : "Adenoma (low/high grade dysplasia)" }, { "code" : "nice-3", "display" : "NICE Type III", "definition" : "Deep submucosal invasive cancer" }, { "code" : "nice-not-evaluated", "display" : "NICE Not evaluated" }, { "code" : "access-easy", "display" : "Easy", "definition" : "Easy access to the polyp. SMSA scale: 1 point." }, { "code" : "access-heavy", "display" : "Heavy", "definition" : "Difficult access to the polyp. SMSA scale: 3 points." }, { "code" : "budding-bd0", "display" : "No tumor budding (Bd0)", "definition" : "0 buds per 20X field" }, { "code" : "budding-bd1", "display" : "Bd1 (1-4 / 20X RL)", "definition" : "Low tumor budding: 1-4 buds per 20X field" }, { "code" : "budding-bd2", "display" : "Bd2 (5-9 / 20X RL)", "definition" : "Intermediate tumor budding: 5-9 buds per 20X field" }, { "code" : "budding-bd3", "display" : "Bd3 (10+ / 20X RL)", "definition" : "High tumor budding: 10 or more buds per 20X field" }, { "code" : "budding-invaluable", "display" : "Invaluable", "definition" : "Tumor budding cannot be assessed" }, { "code" : "pdc-none", "display" : "No poorly differentiated clusters" }, { "code" : "pdc-g1", "display" : "PDC-G1 (1-4 / 20X RL)" }, { "code" : "pdc-g2", "display" : "PDC-G2 (5-9 / 20X RL)" }, { "code" : "pdc-g3", "display" : "PDC-G3 (10+ / 20X RL)" }, { "code" : "pdc-invaluable", "display" : "PDC Invaluable" }, { "code" : "mmrp-normal", "display" : "Normal expression (MMR proficient, MSS)" }, { "code" : "mmrp-loss", "display" : "Loss of expression (MMR deficient, MSI)" }, { "code" : "mmrp-invaluable", "display" : "MMRP Invaluable" }, { "code" : "mmrp-postponed", "display" : "MMRP Postponed" }, { "code" : "mmrp-undefined", "display" : "MMRP Undefined (MSS)" }, { "code" : "mol-postponed", "display" : "Postponed", "definition" : "Molecular test has been postponed" }, { "code" : "mol-detected", "display" : "Detected mutation", "definition" : "Mutation has been detected" }, { "code" : "mol-not-detected", "display" : "Undefined mutation", "definition" : "No mutation detected / undefined" }, { "code" : "mol-set", "display" : "Set (MSI)", "definition" : "MSI status has been established" }, { "code" : "msi-test", "display" : "MSI (Microsatellite instability study)", "definition" : "Microsatellite instability study. KLTN code: XLT00915-2" }, { "code" : "kras-test", "display" : "KRAS mutation test", "definition" : "KRAS gene mutation analysis" }, { "code" : "nras-test", "display" : "NRAS mutation test", "definition" : "NRAS gene mutation analysis" }, { "code" : "braf-v600e-test", "display" : "BRAF V600E mutation test", "definition" : "Study of BRAF gene V600 variants. KLTN code: XLT00914-5" }, { "code" : "haggitt-0", "display" : "Haggitt 0" }, { "code" : "haggitt-1", "display" : "Haggitt 1" }, { "code" : "haggitt-2", "display" : "Haggitt 2" }, { "code" : "haggitt-3", "display" : "Haggitt 3" }, { "code" : "haggitt-4", "display" : "Haggitt 4" }, { "code" : "kikuchi-sm1", "display" : "Sm1 according to Kikuchi" }, { "code" : "kikuchi-sm2", "display" : "Sm2 according to Kikuchi" }, { "code" : "kikuchi-sm3", "display" : "Sm3 according to Kikuchi" }, { "code" : "invasion-invaluable", "display" : "Invasion depth invaluable" }, { "code" : "prep-split-two-day", "display" : "Two-day split preparation", "definition" : "Two-day split-dose bowel preparation protocol" }, { "code" : "prep-same-day", "display" : "Same-day non-split preparation", "definition" : "Same-day non-split bowel preparation protocol" }, { "code" : "polypectomy-snare", "display" : "Snare/loop", "definition" : "Polypectomy performed using a snare or loop" }, { "code" : "polypectomy-forceps", "display" : "Forceps", "definition" : "Polypectomy performed using forceps" }, { "code" : "polypectomy-hot", "display" : "Hot technique", "definition" : "Polypectomy using electrocautery (hot)" }, { "code" : "polypectomy-cold", "display" : "Cold technique", "definition" : "Polypectomy without electrocautery (cold)" }, { "code" : "resection-en-bloc", "display" : "En bloc resection", "definition" : "Complete removal of lesion in one piece" }, { "code" : "resection-piecemeal", "display" : "Piecemeal resection", "definition" : "Removal of lesion in multiple fragments" }, { "code" : "lumen-air", "display" : "Air insufflation", "definition" : "Colonic lumen distension using air" }, { "code" : "lumen-water", "display" : "Water immersion", "definition" : "Colonic lumen distension using water" }, { "code" : "lumen-co2", "display" : "CO2 insufflation", "definition" : "Colonic lumen distension using carbon dioxide" }, { "code" : "hydro-saline", "display" : "Normal saline", "definition" : "Submucosal injection of normal saline for lesion lifting" }, { "code" : "hydro-adrenaline", "display" : "Adrenaline", "definition" : "Submucosal injection of adrenaline for lesion lifting" }, { "code" : "hydro-methylene-blue", "display" : "Methylene blue", "definition" : "Submucosal injection of methylene blue for lesion lifting" }, { "code" : "hydro-gelofusine", "display" : "Gelofusine", "definition" : "Submucosal injection of Gelofusine for lesion lifting" }, { "code" : "bleeding-clip", "display" : "Hemostatic clipping", "definition" : "Bleeding control using hemostatic clips" }, { "code" : "bleeding-adrenaline-injection", "display" : "Adrenaline injection", "definition" : "Bleeding control using local adrenaline injection" }, { "code" : "bleeding-coagulation", "display" : "Thermal coagulation", "definition" : "Bleeding control using thermal coagulation" }, { "code" : "bleeding-other", "display" : "Other bleeding control method", "definition" : "Other method of bleeding control not specified above" }] }