Compounded Preparation - TPN Solution - includes a reference to a substance in the ingredient element

{
  "resourceType" : "Medication",
  "id" : "med0318",
  "doseForm" : {
    "coding" : [{
      "system" : "http://snomed.info/sct",
      "code" : "385221006",
      "display" : "Conventional release emulsion for injection (dose form)"
    }]
  },
  "ingredient" : [{
    "item" : {
      "concept" : {
        "coding" : [{
          "system" : "http://hl7.org/fhir/sid/ndc",
          "code" : "0338-1134-03",
          "display" : "CLINIMIX, 1000 mL in 1 BAG (0338-1134-03) (package)"
        }],
        "text" : "Clinimix 4.25/10 sulfite-free (4.25% Amino Acid in 10% Dextrose) Injection, 1000ml"
      }
    }
  },
  {
    "item" : {
      "concept" : {
        "coding" : [{
          "system" : "http://hl7.org/fhir/sid/ndc",
          "code" : "0409-5779-01",
          "display" : "TPN Electrolytes, 25 VIAL, SINGLE-DOSE in 1 CARTON (0409-5779-01) > 20 mL in 1 VIAL, SINGLE-DOSE (0409-5779-11) (package)"
        }],
        "text" : "TPN Electrolytes SODIUM CHLORIDE, CALCIUM CHLORIDE, POTASSIUM CHLORIDE, MAGNESIUM CHLORIDE, and SODIUM ACETATE ANHYDROUS | INJECTION, SOLUTION, CONCENTRATE | 321 mg/20mL, 331 mg/20mL, 1491 mg/20mL, 508 mg/20mL, 2420 mg/20mL"
      }
    }
  },
  {
    "item" : {
      "concept" : {
        "coding" : [{
          "system" : "http://hl7.org/fhir/sid/ndc",
          "code" : "0338-0519-02",
          "display" : "Intralipid, 250 mL in 1 BAG (0338-0519-02) (package)"
        }],
        "text" : "Intralipid 20% IV Fat Emulsion"
      }
    }
  }],
  "batch" : {

  "instance" : {

    "lotNumber" : "123455",
    "expirationDate" : "2016-07-09"
  }
}