Primary Sjogren Syndrome Primary Sjogren Syndrome Disease or Syndrome Sjogren syndrome without an associated systemic autoimmune disorder. NICHD Primary Sjögren Syndrome C0151449 Primary Sjogren Syndrome Primary Sjogren's syndrome C116985 Sjogren syndrome without a concomitant systemic autoimmune disorder. Pediatric Rheumatology Terminology Sjogren Syndrome NICHD Terminology