{
  "url": "https://dantelabs.com/traits/intervertebral-disk-calcification",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "intervertebral-disk-calcification",
    "id": "HP:0005645",
    "name": "Intervertebral disk calcification",
    "definition": "The presence of abnormal calcium deposition of the intervertebral disk.",
    "synonyms": [
      "Intervertebral disc calcification",
      "Multiple intervertebral disc calcifications",
      "Multiple intervertebral disk calcifications"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-musculoskeletal-system",
        "name": "Abnormality of the musculoskeletal system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-musculoskeletal-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-intervertebral-disk-morphology",
        "name": "Abnormal intervertebral disk morphology",
        "url": "https://dantelabs.com/traits/abnormal-intervertebral-disk-morphology"
      },
      {
        "slug": "ectopic-calcification",
        "name": "Ectopic calcification",
        "url": "https://dantelabs.com/traits/ectopic-calcification"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "col9a1",
        "symbol": "COL9A1",
        "hgnc": "HGNC:2217",
        "name": "collagen type IX alpha 1 chain",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/col9a1"
      },
      {
        "slug": "hgd",
        "symbol": "HGD",
        "hgnc": "HGNC:4892",
        "name": "homogentisate 1,2-dioxygenase",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hgd"
      },
      {
        "slug": "nt5e",
        "symbol": "NT5E",
        "hgnc": "HGNC:8021",
        "name": "5'-nucleotidase ecto",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nt5e"
      }
    ]
  }
}