C0, no visible or palpable signs
No visible or palpable signs of venous disease in the classified lower extremity. C0 may still be suffixed s when symptoms attributable to venous disease are present or a when they are absent.
Per-limb Clinical-Etiologic-Anatomic-Pathophysiologic description of lower-extremity chronic venous disorders; the C axis is descriptive and is not a linear severity score.
Descreva o achado como no laudo. A resposta aponta uma das categorias publicadas, com a probabilidade e o trecho que a decide.
No visible or palpable signs of venous disease in the classified lower extremity. C0 may still be suffixed s when symptoms attributable to venous disease are present or a when they are absent.
Telangiectasias or reticular veins in the classified limb. The 2020 task force retained them together as C1 rather than creating separate C1 subclasses.
Varicose veins in the classified limb without using the recurrence modifier. Vein diameter is not part of the 2020 CEAP C category, and origin or responsible venous segment must be described through E/A/P rather than inferred from C2.
Recurrent varicose veins after prior treatment. The 2020 recurrence definition includes true recurrence, residual veins, and new varicose veins arising from disease progression after treatment.
Edema attributable to chronic venous disease in the classified limb. C3 does not grade the extent, regional distribution, firmness, or phlebolymphedema component.
Pigmentation or eczema attributable to chronic venous disease in the classified limb. Report coexisting C4b or C4c findings separately in advanced CEAP.
Lipodermatosclerosis or atrophie blanche attributable to chronic venous disease in the classified limb. These findings remain grouped as C4b in the 2020 revision.
Corona phlebectatica: a fan-shaped pattern of numerous small intradermal veins on the medial or lateral ankle and foot, also called malleolar or ankle flare. It is a distinct C4 subclass in CEAP 2020 rather than C1.
Healed venous ulcer in the classified limb, with no currently active venous ulcer. The 2020 C axis has no C5r code; preserve relevant ulcer history separately.
Active venous ulcer in the classified limb without the recurrence modifier. If an active ulcer is known to have recurred after prior healing or treatment, use C6r instead.
Recurrent active venous ulcer in the classified limb. Apply r only when recurrence is established; an active ulcer with unknown prior healing or treatment history should not be upgraded automatically to C6r.
Classify each limb independently. Keep the complete CEAP tuple when the evidence supports it; never turn the ordered C labels into a numeric severity score or infer E/A/P from appearance alone.
{
"categories": [
{
"outcome_code": "C0",
"finding": "no_visible_or_palpable_signs_of_venous_disease"
},
{
"outcome_code": "C1",
"finding": "telangiectasias_or_reticular_veins"
},
{
"outcome_code": "C2",
"finding": "varicose_veins"
},
{
"outcome_code": "C2r",
"finding": "recurrent_varicose_veins_after_prior_treatment"
},
{
"outcome_code": "C3",
"finding": "edema_attributable_to_venous_disease"
},
{
"outcome_code": "C4a",
"finding": "pigmentation_or_venous_eczema"
},
{
"outcome_code": "C4b",
"finding": "lipodermatosclerosis_or_atrophie_blanche"
},
{
"outcome_code": "C4c",
"finding": "corona_phlebectatica"
},
{
"outcome_code": "C5",
"finding": "healed_venous_ulcer"
},
{
"outcome_code": "C6",
"finding": "active_venous_ulcer"
},
{
"outcome_code": "C6r",
"finding": "recurrent_active_venous_ulcer"
}
],
"applicability": {
"use_for": "Description of chronic venous disorders of the lower extremities, one limb at a time.",
"classification_unit": "right_or_left_lower_extremity",
"required_inputs": [
"limb_side",
"all_present_clinical_signs",
"symptoms_attributable_to_venous_disease",
"prior_treatment_and_recurrence_status"
],
"add_for_full_CEAP": [
"etiology",
"anatomic_venous_compartment_or_segments",
"reflux_or_obstruction_by_segment",
"classification_date"
],
"outside_scope": [
"isolated_pelvic_or_abdominal_venous_disorders_without_lower_extremity_manifestations",
"acute_venous_thrombosis_staging",
"treatment_response_scoring"
]
},
"clinical_axis": {
"basic_CEAP": "Report the single highest numbered C class present in that limb, retaining an applicable subclass or recurrence modifier.",
"advanced_CEAP": "Report every C class present in that limb; do not discard coexisting manifestations.",
"symptom_suffix": {
"s": "symptoms_attributable_to_venous_disease_present",
"a": "symptoms_attributable_to_venous_disease_absent"
},
"recurrence_modifier": {
"allowed_with": [
"C2r",
"C6r"
],
"C2r_scope": [
"true_recurrence",
"residual_varicose_veins",
"new_varicose_veins_from_progression_after_prior_treatment"
],
"C6r_scope": "active_venous_ulcer_that_has_recurred"
},
"nonadditivity_rule": "C findings need not appear sequentially. The numeric ordering must not be interpreted as a linear severity scale or inevitable disease progression.",
"same_level_rule": "C4a, C4b and C4c are distinct C4 manifestations; if more than one is present, retain all of them in advanced CEAP rather than inventing a severity order among the subclasses."
},
"full_CEAP_axes": {
"E_etiology": [
{
"code": "Ep",
"meaning": "primary"
},
{
"code": "Es",
"meaning": "secondary_umbrella"
},
{
"code": "Esi",
"meaning": "secondary_intravenous_with_venous_wall_or_valve_damage"
},
{
"code": "Ese",
"meaning": "secondary_extravenous_hemodynamic_cause_without_required_wall_or_valve_damage"
},
{
"code": "Ec",
"meaning": "congenital"
},
{
"code": "En",
"meaning": "no_cause_identified_after_exclusion_of_other_E_categories"
}
],
"A_anatomy_basic": [
{
"code": "As",
"meaning": "superficial_veins"
},
{
"code": "Ad",
"meaning": "deep_veins"
},
{
"code": "Ap",
"meaning": "perforator_veins"
},
{
"code": "An",
"meaning": "no_venous_anatomic_location_identified"
}
],
"A_anatomy_advanced_abbreviations": {
"superficial": [
"Tel",
"Ret",
"GSVa",
"GSVb",
"SSV",
"AASV",
"NSV"
],
"deep": [
"IVC",
"CIV",
"IIV",
"EIV",
"PELV",
"CFV",
"DFV",
"FV",
"POPV",
"TIBV",
"PRV",
"ATV",
"PTV",
"MUSV",
"GAV",
"SOV"
],
"perforator": [
"TPV",
"CPV"
]
},
"P_pathophysiology_basic": [
{
"code": "Pr",
"meaning": "reflux"
},
{
"code": "Po",
"meaning": "obstruction"
},
{
"code": "Pr,o",
"meaning": "reflux_and_obstruction"
},
{
"code": "Pn",
"meaning": "no_venous_pathophysiology_identified"
}
],
"advanced_linkage_rule": "Attach each specific anatomic abbreviation to its demonstrated pathophysiology, for example Pr(GSVa,GSVb) and Po(CIV); do not infer E, A or P from the C class alone."
},
"output_contract": [
"identify_right_or_left_limb",
"state_basic_or_advanced_CEAP",
"report_C_code_or_codes_with_s_or_a_suffix",
"preserve_r_only_for_C2r_or_C6r_when_recurrence_is_established",
"for_full_CEAP_report_E_A_and_P_separately",
"for_advanced_P_link_each_named_vein_to_reflux_or_obstruction",
"record_classification_date"
],
"missing_input_behavior": [
"Do not label C2r or C6r when prior treatment or recurrence status is unknown; retain the observable non-r category and flag recurrence status as unresolved.",
"Do not infer symptoms from imaging or infer reflux, obstruction, etiology or anatomic distribution from the clinical C class.",
"If clinical examination is unavailable, do not manufacture a C class from duplex findings alone."
],
"interpretation_limits": [
"CEAP is descriptive; it does not measure change over time, prescribe treatment, or replace the Venous Clinical Severity Score when a severity or longitudinal instrument is required.",
"A C class alone is an incomplete CEAP description and cannot establish the responsible vein, etiology, reflux, obstruction or procedural target."
],
"source_locator": "Lurie et al., 2020 CEAP update, DOI 10.1016/j.jvsv.2019.12.075: Table III and Clinical revision text for C0-C6r, basic versus advanced C and s/a; Tables IV-VI for E, A and P; Anatomic and Pathophysiologic revision sections for limb side and advanced segment linkage."
}Referência, não é dispositivo médico. Confira a publicação primária vigente. O radiologista que assina o laudo continua autor e responsável.