"code yellow" meaning in English

{
  "etymology_text": "Perhaps originally a code used for this situation in some hospitals, or named in imitation of hospital codes and in reference to the yellow colour of urine. (Hospitals today use code yellow for various things including an emergency requiring all personnel to report to the hospital, a bomb threat requiring all personnel to evacuate the hospital, an indication that a patient should be prioritized, an animal being loose, etc.)",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "code yellow (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "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": [
        [
          "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."
      ],
      "related": [
        {
          "word": "colour code"
        },
        {
          "word": "code blue"
        },
        {
          "word": "code red"
        },
        {
          "word": "number one"
        }
      ],
      "tags": [
        "humorous",
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q1860 (eng)-Flame, not lame-code yellow.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/0/0b/LL-Q1860_%28eng%29-Flame%2C_not_lame-code_yellow.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-code_yellow.wav.mp3",
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      "tags": [
        "US"
      ]
    }
  ],
  "word": "code yellow"
}

{
  "etymology_text": "Perhaps originally a code used for this situation in some hospitals, or named in imitation of hospital codes and in reference to the yellow colour of urine. (Hospitals today use code yellow for various things including an emergency requiring all personnel to report to the hospital, a bomb threat requiring all personnel to evacuate the hospital, an indication that a patient should be prioritized, an animal being loose, etc.)",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "code yellow (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "colour code"
    },
    {
      "word": "code blue"
    },
    {
      "word": "code red"
    },
    {
      "word": "number one"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English humorous terms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "coordinate_terms": [
        {
          "word": "code brown"
        }
      ],
      "glosses": [
        "The situation where a person urinates in an undesirable location (e.g. hospital bed or retail store), requiring cleanup."
      ],
      "links": [
        [
          "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"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q1860 (eng)-Flame, not lame-code yellow.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/0/0b/LL-Q1860_%28eng%29-Flame%2C_not_lame-code_yellow.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-code_yellow.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/0/0b/LL-Q1860_%28eng%29-Flame%2C_not_lame-code_yellow.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-code_yellow.wav.ogg",
      "tags": [
        "US"
      ]
    }
  ],
  "word": "code yellow"
}