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Source1

{
  "resourceType": "CodeSystem",
  "id": "age-component-codes",
  "text": {
    "status": "generated",
    "div": "<!-- snip (see above) -->"
  },
  "url": "https://sandbox.dhin-hie.org/ig/CodeSystem/age-component-codes",
  "version": "0.2.0",
  "name": "NgAgeComponentCodesCS",
  "title": "NG Age Component Codes",
  "status": "active",
  "experimental": false,
  "date": "2026-02-18T09:05:08+00:00",
  "publisher": "DHIN",
  "contact": [
    {
      "name": "DHIN",
      "telecom": [
        {
          "system": "url",
          "value": "https://www.dhin-hie.org"
        },
        {
          "system": "email",
          "value": "info@dhin-hie.org"
        }
      ]
    },
    {
      "name": "Digital Health Interoperability Network.",
      "telecom": [
        {
          "system": "email",
          "value": "info@dhin-hie.org",
          "use": "work"
        }
      ]
    }
  ],
  "description": "Local CodeSystem for age components: units, comparison operators, and common MNCH/EPI age bands for use in measures, decision logic, and stratification.",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "urn:iso:std:iso:3166",
          "code": "NG",
          "display": "Nigeria"
        }
      ]
    }
  ],
  "caseSensitive": true,
  "content": "complete",
  "count": 30,
  "concept": [
    {
      "code": "yr",
      "display": "Years (y)",
      "definition": "Age measured in years."
    },
    {
      "code": "mn",
      "display": "Months (mo)",
      "definition": "Age measured in months."
    },
    {
      "code": "wk",
      "display": "Weeks (wk)",
      "definition": "Age measured in weeks."
    },
    {
      "code": "da",
      "display": "Days (d)",
      "definition": "Age measured in days."
    },
    {
      "code": "hr",
      "display": "Hours (h)",
      "definition": "Age measured in hours (e.g., immediate neonatal)."
    },
    {
      "code": "op-lt",
      "display": "< (less than)",
      "definition": "Comparator for age threshold: less than."
    },
    {
      "code": "op-le",
      "display": "≤ (less than or equal)",
      "definition": "Comparator for age threshold: less than or equal."
    },
    {
      "code": "op-eq",
      "display": "= (equal)",
      "definition": "Comparator for age equality checks."
    },
    {
      "code": "op-ge",
      "display": "≥ (greater than or equal)",
      "definition": "Comparator for age threshold: greater than or equal."
    },
    {
      "code": "op-gt",
      "display": "> (greater than)",
      "definition": "Comparator for age threshold: greater than."
    },
    {
      "code": "band-neonate",
      "display": "Neonate (0–28 days)",
      "definition": "0–28 days inclusive."
    },
    {
      "code": "band-early-neonate",
      "display": "Early neonate (0–6 days)",
      "definition": "0–6 days inclusive."
    },
    {
      "code": "band-late-neonate",
      "display": "Late neonate (7–28 days)",
      "definition": "7–28 days inclusive."
    },
    {
      "code": "band-under1",
      "display": "Under 1 year (0–11 months)",
      "definition": "0–11 months inclusive."
    },
    {
      "code": "band-infant",
      "display": "Infant (1–11 months)",
      "definition": "1–11 months inclusive."
    },
    {
      "code": "band-u5",
      "display": "Under 5 years (0–59 months)",
      "definition": "0–59 months inclusive."
    },
    {
      "code": "band-1to4y",
      "display": "1–4 years",
      "definition": "1 year up to 4 years 11 months."
    },
    {
      "code": "band-5to9y",
      "display": "5–9 years",
      "definition": "5 years up to 9 years 11 months."
    },
    {
      "code": "band-10to14y",
      "display": "10–14 years",
      "definition": "10 years up to 14 years 11 months."
    },
    {
      "code": "band-15to19y",
      "display": "Adolescent (15–19 years)",
      "definition": "15 years up to 19 years 11 months."
    },
    {
      "code": "band-20to24y",
      "display": "Young adult (20–24 years)",
      "definition": "20 years up to 24 years 11 months."
    },
    {
      "code": "band-25to49y",
      "display": "Adult (25–49 years)",
      "definition": "25 years up to 49 years 11 months."
    },
    {
      "code": "band-50to64y",
      "display": "Older adult (50–64 years)",
      "definition": "50 years up to 64 years 11 months."
    },
    {
      "code": "band-65plus",
      "display": "Senior (≥65 years)",
      "definition": "65 years and above."
    },
    {
      "code": "epi-birth",
      "display": "At birth",
      "definition": "EPI schedule label for birth dose."
    },
    {
      "code": "epi-6w",
      "display": "6 weeks",
      "definition": "EPI schedule label for doses due at 6 weeks."
    },
    {
      "code": "epi-10w",
      "display": "10 weeks",
      "definition": "EPI schedule label for doses due at 10 weeks."
    },
    {
      "code": "epi-14w",
      "display": "14 weeks",
      "definition": "EPI schedule label for doses due at 14 weeks."
    },
    {
      "code": "epi-9m",
      "display": "9 months",
      "definition": "EPI schedule label for doses due at 9 months."
    },
    {
      "code": "epi-15m",
      "display": "15 months",
      "definition": "EPI schedule label for doses due at 15 months."
    }
  ]
}