{
    "SPECIFIC PHOBIA": {
      "duration": "persistent for at least 6 months",
      "rule": "YES on all of Items 2-6 (B-F). Screening item marks phobia type.",
      "logic": {
        "all": [
          { "item": "2", "equals": "YES" },
          { "item": "3", "equals": "YES" },
          { "item": "4", "equals": "YES" },
          { "item": "5", "equals": "YES" },
          { "item": "6", "equals": "YES" }
        ]
      },
      "dsm5_item_map": { "2": "B", "3": "C", "4": "D", "5": "E (≥6 months)", "6": "F (impairment)" }
    },
  
    "SEPARATION ANXIETY DISORDER": {
      "duration": "at least 4 weeks (children/adolescents), disabling",
      "rule": "YES on ≥3 of Items 2-9 (A1-A8) AND Item 10 (B) AND Item 11 (C).",
      "logic": {
        "all": [
          { "min_yes": 3, "items": ["2","3","4","5","6","7","8","9"] },
          { "item": "10", "equals": "YES" },
          { "item": "11", "equals": "YES" }
        ]
      },
      "dsm5_item_map": { "2-9": "A1-A8", "10": "B (duration ≥4w)", "11": "C (impairment)" }
    },
  
    "SOCIAL ANXIETY DISORDER": {
      "duration": "several months; present with peers (DSM-5 commonly ≥6 months); disabling",
      "rule": "YES on Items 2-7 (A-G) AND Item 8 (H: not due to substance/medical) AND Item 9 (J: not due to other medical condition).",
      "logic": {
        "all": [
          { "item": "2", "equals": "YES" },
          { "item": "3", "equals": "YES" },
          { "item": "4", "equals": "YES" },
          { "item": "5", "equals": "YES" },
          { "item": "6", "equals": "YES" },
          { "item": "7", "equals": "YES" },
          { "item": "8", "equals": "YES" },
          { "item": "9", "equals": "YES" }
        ]
      },
      "dsm5_item_map": {
        "2": "A",
        "3": "B",
        "4": "C",
        "5": "D",
        "6": "E (duration)",
        "7": "G (impairment)",
        "8": "H (substance/medical exclusion)",
        "9": "J (other medical condition exclusion)"
      }
    },
  
    "PANIC DISORDER": {
      "duration": "≥1 month of persistent worry and/or maladaptive change (B1/B2).",
      "rule": "YES if (≥4 symptoms checked in Item 2) AND (YES on Item 3 OR YES on Item 4) AND YES on Item 5 (exclusion).",
      "logic": {
        "all": [
          { "min_checked": 4, "item": "2" },
          { "any": [ { "item": "3", "equals": "YES" }, { "item": "4", "equals": "YES" } ] },
          { "item": "5", "equals": "YES" }
        ]
      },
      "dsm5_item_map": { "2": "A1-A13 (≥4)", "3": "B1 (persistent worry)", "4": "B2 (maladaptive change)", "5": "C (exclusion)" }
    },
  
    "AGORAPHOBIA": {
      "duration": "persistent (≥ 6 months), disabling",
      "rule": "YES if (≥2 situations checked in Item 2) AND YES on all Items 3-9.",
      "logic": {
        "all": [
          { "min_checked": 2, "item": "2" },
          { "item": "3", "equals": "YES" },
          { "item": "4", "equals": "YES" },
          { "item": "5", "equals": "YES" },
          { "item": "6", "equals": "YES" },
          { "item": "7", "equals": "YES" },
          { "item": "8", "equals": "YES" },
          { "item": "9", "equals": "YES" }
        ]
      },
      "dsm5_item_map": {
        "2": "A1-A5 (situations)",
        "3": "B",
        "4": "C",
        "5": "D",
        "6": "E",
        "7": "F (≥6m)",
        "8": "G (impairment)",
        "9": "H/I (medical relation/exclusion)"
      }
    },
  
    "GENERALISED ANXIETY DISORDER": {
      "duration": "persistent for several months and present most days (DSM-5: ≥6 months)",
      "rule": "YES on Item 2 (B: difficulty controlling worry) AND ≥1 symptom checked in Item 3 (C1-C6) AND Item 4 (D: impairment) AND Item 5 (E: exclusion).",
      "logic": {
        "all": [
          { "item": "2", "equals": "YES" },
          { "min_checked": 1, "item": "3" },
          { "item": "4", "equals": "YES" },
          { "item": "5", "equals": "YES" }
        ]
      },
      "dsm5_item_map": { "2": "B", "3": "C1-C6 (≥1 child)", "4": "D (impairment)", "5": "E (exclusion)" }
    },
  
    "OBSESSIVE-COMPULSIVE DISORDER": {
      "duration": "time-consuming (>1 hour/day) or clinically significant distress/impairment.",
      "rule": "(Obsessions: YES on Items 2 AND 4) OR (Compulsions: YES on Items 5 AND 7) AND YES on Item 8 AND YES on Item 9.",
      "logic": {
        "all": [
          {
            "any": [
              { "all": [ { "item": "2", "equals": "YES" }, { "item": "4", "equals": "YES" } ] },
              { "all": [ { "item": "5", "equals": "YES" }, { "item": "7", "equals": "YES" } ] }
            ]
          },
          { "item": "8", "equals": "YES" },
          { "item": "9", "equals": "YES" }
        ]
      },
      "dsm5_item_map": {
        "2": "A obsessions",
        "4": "A attempts to suppress",
        "5": "A compulsions",
        "7": "A goal of compulsions",
        "8": "B (time/impairment)",
        "9": "C (exclusion)"
      }
    },
  
    "PTSD/COMPLEX PTSD": {
      "duration": "≥ 1 month (Criterion F).",
      "rule": "PTSD: Item 2 YES (A) AND ≥1 of Items 3-7 (B) AND ≥1 of Items 8-9 (C) AND ≥2 of Items 10,11,11.1,12-16 (D) AND ≥2 of Items 19-24 (E) AND Items 25 (F), 26 (G), 27 (H) YES. Complex PTSD adds 11.1, 17, 18.",
      "logic": {
        "ptsd": {
          "all": [
            { "item": "2", "equals": "YES" },
            { "min_yes": 1, "items": ["3","4","5","6","7"] },
            { "min_yes": 1, "items": ["8","9"] },
            { "min_yes": 2, "items": ["10","11","11.1","12","13","14","15","16"] },
            { "min_yes": 2, "items": ["19","20","21","22","23","24"] },
            { "item": "25", "equals": "YES" },
            { "item": "26", "equals": "YES" },
            { "item": "27", "equals": "YES" }
          ]
        },
        "complex_ptsd": {
          "all": [
            { "ref": "ptsd" },
            { "item": "11.1", "equals": "YES" },
            { "item": "17", "equals": "YES" },
            { "item": "18", "equals": "YES" }
          ]
        }
      },
      "dsm5_item_map": {
        "2": "A",
        "3-7": "B (≥1)",
        "8-9": "C (≥1)",
        "10,11,11.1,12-16": "D (≥2)",
        "19-24": "E (≥2)",
        "25": "F",
        "26": "G",
        "27": "H",
        "11.1,17,18": "ICD-11 DSO"
      }
    },
  
    "SUICIDALITY": {
      "duration": "n/a (risk construct; consider current and past).",
      "rule": "Positive screen if any of Items 4-7 are YES (suicidal thoughts/plans/attempts or self-harm).",
      "logic": {
        "any": [
          { "item": "4", "equals": "YES" },
          { "item": "5", "equals": "YES" },
          { "item": "6", "equals": "YES" },
          { "item": "7", "equals": "YES" }
        ]
      },
      "risk_notes": "Prior attempts (Item 6) and current plans (Item 5) indicate higher acute risk; follow safeguarding protocol."
    },
  
    "MAJOR DEPRESSIVE EPISODE": {
      "duration": "symptoms present nearly every day during the same 2-week period",
      "rule": "YES on ≥5 of Items 2-10 (A1-A9) with at least one of Item 2 or 3, AND Item 11 (B) AND Item 12 (C).",
      "logic": {
        "all": [
          { "symptom_block": { "items": ["2","3","4","5","6","7","8","9","10"], "count_yes_at_least": 5, "must_include_any_of": ["2","3"] } },
          { "item": "11", "equals": "YES" },
          { "item": "12", "equals": "YES" }
        ]
      },
      "dsm5_item_map": { "2-10": "A1-A9 (≥5 incl. 2 or 3)", "11": "B (impairment)", "12": "C (exclusion)" }
    },
  
    "PERSISTENT DEPRESSION": {
      "duration": "≥1 year; not symptom-free >2 months at a time",
      "rule": "Item 2 (B1-B6): ≥2 symptoms checked AND Item 3 YES (C: not symptom-free >2 months) AND Item 4 YES (impairment) AND Item 5 YES (exclusion).",
      "logic": {
        "all": [
          { "min_checked": 2, "item": "2" },
          { "item": "3", "equals": "YES" },
          { "item": "4", "equals": "YES" },
          { "item": "5", "equals": "YES" }
        ]
      },
      "dsm5_item_map": { "2": "B1-B6 (≥2)", "3": "C (not symptom-free >2m)", "4": "H (impairment)", "5": "G (exclusion)" }
    },
  
    "MANIC/HYPOMANIC EPISODE": {
      "duration": "mania: ≥1 week or any duration if hospitalised; hypomania: ≥4 days (captured via items 3-6).",
      "rule": "Mania path: Item 2 (B1-B7) ≥3 checked AND Item 5 YES (marked impairment/psychosis/hospitalisation) AND Item 7 YES (exclusion). Hypomania path: Item 2 ≥3 checked AND Item 4 YES (noticeable to others) AND Item 6 YES (no significant disability) AND Item 7 YES (exclusion).",
      "logic": {
        "mania": {
          "all": [
            { "min_checked": 3, "item": "2" },
            { "item": "5", "equals": "YES" },
            { "item": "7", "equals": "YES" }
          ]
        },
        "hypomania": {
          "all": [
            { "min_checked": 3, "item": "2" },
            { "item": "4", "equals": "YES" },
            { "item": "6", "equals": "YES" },
            { "item": "7", "equals": "YES" }
          ]
        }
      },
      "dsm5_item_map": {
        "2": "B1-B7 (≥3)",
        "4": "Hypomania visibility",
        "5": "C (mania severity/psychosis)",
        "6": "Hypomania—no marked impairment",
        "7": "D (exclusion)"
      }
    },
  
    "SCREEN FOR PSYCHOTIC DISORDERS": {
      "duration": "for schizophrenia-spectrum disorders, continuous signs ≥6 months with ≥1 month active-phase—EPSI-C here is a screen.",
      "rule": "Positive psychosis screen if (any YES among Items 2-6) AND Item 7 YES (impairment) AND Item 8 YES (exclusion).",
      "logic": {
        "all": [
          { "min_yes": 1, "items": ["2","3","4","5","6"] },
          { "item": "7", "equals": "YES" },
          { "item": "8", "equals": "YES" }
        ]
      },
      "dsm5_item_map": {
        "2": "Hallucinations",
        "3": "Delusions",
        "4": "Disorganized speech",
        "5": "Disorganized/catatonic behavior",
        "6": "Negative symptoms",
        "7": "Impairment",
        "8": "Exclusion"
      }
    },
  
    "ANOREXIA NERVOSA": {
      "duration": "persistent pattern; DSM-5 has no fixed minimum duration",
      "rule": "YES on Item 2 (A: restriction/low weight) AND Item 3 (C: body image disturbance/lack of recognition).",
      "logic": {
        "all": [
          { "item": "2", "equals": "YES" },
          { "item": "3", "equals": "YES" }
        ]
      },
      "dsm5_item_map": { "2": "A", "3": "C (includes B via behaviours)" }
    },
  
    "BULIMIA NERVOSA": {
      "duration": "≥1/week for 3 months",
      "rule": "YES on Item 2 (binge amount) AND Item 3 (loss of control) AND Item 4 (compensatory behaviours) AND Item 5 (frequency/duration) AND Item 6 (shape/weight influence).",
      "logic": {
        "all": [
          { "item": "2", "equals": "YES" },
          { "item": "3", "equals": "YES" },
          { "item": "4", "equals": "YES" },
          { "item": "5", "equals": "YES" },
          { "item": "6", "equals": "YES" }
        ]
      },
      "dsm5_item_map": { "2": "A (binge)", "3": "A (loss of control)", "4": "B (compensation)", "5": "C (freq/dur)", "6": "D (self-evaluation)" }
    },
  
    "BINGE-EATING DISORDER": {
      "duration": "≥1/week for 3 months",
      "rule": "YES on Item 2 (binge) AND Item 3 (loss of control) AND ≥3 features in Item 4 (B1-B5) AND Item 5 (distress) AND Item 6 (frequency/duration) AND Item 7 (no compensatory behaviours).",
      "logic": {
        "all": [
          { "item": "2", "equals": "YES" },
          { "item": "3", "equals": "YES" },
          { "min_checked": 3, "item": "4" },
          { "item": "5", "equals": "YES" },
          { "item": "6", "equals": "YES" },
          { "item": "7", "equals": "YES" }
        ]
      },
      "dsm5_item_map": {
        "2": "A",
        "3": "A (loss of control)",
        "4": "B1-B5 (≥3)",
        "5": "C",
        "6": "D",
        "7": "E/F"
      }
    },
  
    "ADHD": {
      "duration": "≥6 months; several symptoms before age 12; present in ≥2 settings",
      "rule": "Combined: (≥6 YES in Items 2-10) AND (≥6 YES in Items 11-19) AND Items 20,21,22 YES. Inattentive: (≥6 YES in 2-10) AND 20,21,22 YES AND <6 YES in 11-19. Hyperactive/Impulsive: (≥6 YES in 11-19) AND 20,21,22 YES AND <6 YES in 2-10.",
      "logic": {
        "combined": {
          "all": [
            { "min_yes": 6, "items": ["2","3","4","5","6","7","8","9","10"] },
            { "min_yes": 6, "items": ["11","12","13","14","15","16","17","18","19"] },
            { "item": "20", "equals": "YES" },
            { "item": "21", "equals": "YES" },
            { "item": "22", "equals": "YES" }
          ]
        },
        "inattentive": {
          "all": [
            { "min_yes": 6, "items": ["2","3","4","5","6","7","8","9","10"] },
            { "item": "20", "equals": "YES" },
            { "item": "21", "equals": "YES" },
            { "item": "22", "equals": "YES" }
          ],
          "not": { "min_yes": 6, "items": ["11","12","13","14","15","16","17","18","19"] }
        },
        "hyperactive_impulsive": {
          "all": [
            { "min_yes": 6, "items": ["11","12","13","14","15","16","17","18","19"] },
            { "item": "20", "equals": "YES" },
            { "item": "21", "equals": "YES" },
            { "item": "22", "equals": "YES" }
          ],
          "not": { "min_yes": 6, "items": ["2","3","4","5","6","7","8","9","10"] }
        }
      },
      "dsm5_item_map": {
        "2-10": "Inattention (≥6)",
        "11-19": "Hyperactivity/Impulsivity (≥6)",
        "20": "Onset <12y",
        "21": "≥2 settings",
        "22": "Impairment"
      }
    },
  
    "AUTISM SPECTRUM DISORDER": {
      "duration": "present in the early developmental period; may become apparent later as demands increase",
      "rule": "YES on Items 2,3,4 (A1-A3 all) AND ≥2 YES among Items 5-8 (B1-B4) AND Item 9 YES (early onset) AND Item 10 YES (impairment).",
      "logic": {
        "all": [
          { "all": [ { "item": "2", "equals": "YES" }, { "item": "3", "equals": "YES" }, { "item": "4", "equals": "YES" } ] },
          { "min_yes": 2, "items": ["5","6","7","8"] },
          { "item": "9", "equals": "YES" },
          { "item": "10", "equals": "YES" }
        ]
      },
      "dsm5_item_map": { "2-4": "A1-A3 (all)", "5-8": "B1-B4 (≥2)", "9": "C (early)", "10": "D (impairment) / E (exclusion) context" }
    },
  
    "TOURETTE’S DISORDER/TICS": {
      "duration": "> 1 year; onset before 18 (captured via items)",
      "rule": "Tourette’s path: Items 2 AND 3 AND 4 AND 5 YES. Persistent Tic path: (Item 2 OR Item 3) AND 4 AND 5 YES.",
      "logic": {
        "tourette": {
          "all": [
            { "item": "2", "equals": "YES" },
            { "item": "3", "equals": "YES" },
            { "item": "4", "equals": "YES" },
            { "item": "5", "equals": "YES" }
          ]
        },
        "persistent_tic": {
          "all": [
            { "any": [ { "item": "2", "equals": "YES" }, { "item": "3", "equals": "YES" } ] },
            { "item": "4", "equals": "YES" },
            { "item": "5", "equals": "YES" }
          ]
        }
      },
      "dsm5_item_map": { "2": "Motor tics", "3": "Vocal tics", "4": ">=1 year", "5": "Exclusion (substance/medical)" }
    },
  
    "OPPOSITIONAL DEFIANT DISORDER": {
      "duration": "≥6 months; frequency by age norms; impairment required",
      "rule": "YES if ≥4 YES among Items 2-9 AND Item 10 YES (impairment/distress).",
      "logic": {
        "all": [
          { "min_yes": 4, "items": ["2","3","4","5","6","7","8","9"] },
          { "item": "10", "equals": "YES" }
        ]
      },
      "dsm5_item_map": { "2-9": "A symptoms (≥4)", "10": "Distress/impairment" }
    },
  
    "CONDUCT DISORDER": {
      "duration": "≥3 criteria in last 12 months with ≥1 in last 6 months; impairment",
      "rule": "YES if ≥3 behaviours checked in Item 2 (12 months) AND Item 3 YES (≥1 in last 6 months) AND Item 4 YES (impairment).",
      "logic": {
        "all": [
          { "min_checked": 3, "item": "2" },
          { "item": "3", "equals": "YES" },
          { "item": "4", "equals": "YES" }
        ]
      },
      "dsm5_item_map": { "2": "A1-A15 (≥3 in 12m)", "3": "Recency ≥1 in 6m", "4": "Impairment" }
    },
  
    "SUBSTANCE-RELATED DISORDERS": {
      "duration": "occurring within a 12-month period; severity by count",
      "rule": "Count DSM-5 criteria groups across Items 2-12 plus tolerance (11/12) and withdrawal (13/14). Severity: 2-3 mild, 4-5 moderate, ≥6 severe.",
      "logic": {
        "severity_by_count": {
          "groups": [
            ["2"], ["3"], ["4"], ["5"], ["6"], ["7"], ["8"], ["9"], ["10"],
            ["11","12"], ["13","14"]
          ],
          "window": "12m",
          "thresholds": { "mild": [2,3], "moderate": [4,5], "severe": [6,11] }
        }
      },
      "dsm5_item_map": { "2-10": "A1-A9", "11-12": "Tolerance (either)", "13-14": "Withdrawal (either)" }
    }
  }