"code yellow" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "code yellow (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "_dis1": "0 0",
      "word": "code black • code blue • code brown • code grey • code orange • code pink • code red • code silver • code white • code yellow"
    },
    {
      "_dis1": "0 0",
      "word": "colour code"
    },
    {
      "_dis1": "0 0",
      "word": "number one"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Canadian English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Medicine",
          "orig": "en:Medicine",
          "parents": [
            "Biology",
            "Healthcare",
            "Sciences",
            "Health",
            "All topics",
            "Body",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "the condition on the occurrence of a bomb threat."
      ],
      "id": "en-code_yellow-en-noun-V6SerkfT",
      "links": [
        [
          "Canada",
          "Canada"
        ],
        [
          "US",
          "American English"
        ],
        [
          "medicine",
          "medicine"
        ]
      ],
      "raw_glosses": [
        "(Canada, US, medicine) the condition on the occurrence of a bomb threat."
      ],
      "tags": [
        "Canada",
        "US",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "sciences"
      ]
    },
    {
      "categories": [
        {
          "_dis": "27 73",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "19 81",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "9 91",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "Coordinate term: code brown"
        }
      ],
      "glosses": [
        "The situation where a person urinates in an undesirable location (e.g. hospital bed or retail store), requiring cleanup."
      ],
      "id": "en-code_yellow-en-noun-QOvUIKS9",
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "urinate",
          "urinate"
        ],
        [
          "hospital",
          "hospital"
        ],
        [
          "bed",
          "bed"
        ],
        [
          "retail",
          "retail"
        ],
        [
          "store",
          "store"
        ]
      ],
      "raw_glosses": [
        "(humorous) The situation where a person urinates in an undesirable location (e.g. hospital bed or retail store), requiring cleanup."
      ],
      "tags": [
        "humorous",
        "uncountable"
      ]
    }
  ],
  "word": "code yellow"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English uncountable nouns",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "code yellow (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "code black • code blue • code brown • code grey • code orange • code pink • code red • code silver • code white • code yellow"
    },
    {
      "word": "colour code"
    },
    {
      "word": "number one"
    }
  ],
  "senses": [
    {
      "categories": [
        "American English",
        "Canadian English",
        "en:Medicine"
      ],
      "glosses": [
        "the condition on the occurrence of a bomb threat."
      ],
      "links": [
        [
          "Canada",
          "Canada"
        ],
        [
          "US",
          "American English"
        ],
        [
          "medicine",
          "medicine"
        ]
      ],
      "raw_glosses": [
        "(Canada, US, medicine) the condition on the occurrence of a bomb threat."
      ],
      "tags": [
        "Canada",
        "US",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "sciences"
      ]
    },
    {
      "categories": [
        "English humorous terms"
      ],
      "examples": [
        {
          "text": "Coordinate term: code brown"
        }
      ],
      "glosses": [
        "The situation where a person urinates in an undesirable location (e.g. hospital bed or retail store), requiring cleanup."
      ],
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "urinate",
          "urinate"
        ],
        [
          "hospital",
          "hospital"
        ],
        [
          "bed",
          "bed"
        ],
        [
          "retail",
          "retail"
        ],
        [
          "store",
          "store"
        ]
      ],
      "raw_glosses": [
        "(humorous) The situation where a person urinates in an undesirable location (e.g. hospital bed or retail store), requiring cleanup."
      ],
      "tags": [
        "humorous",
        "uncountable"
      ]
    }
  ],
  "word": "code yellow"
}