Concepts for Calculation of TX_PVLS

Numerator  

• Number of adult and pediatric patients on ART with suppressed viral load results (<1,000 copies/ml) documented in the medical records and /or supporting laboratory results within the past 12 months.

• We will consider patients with result from  CIEL:856 with a threshold of < 1000 copies / mL as the standard for viral load suppression  and in case the patient does not have a CIEL:856 result, we will consider results  CIEL:1305 where the value is (BEYOND DETECTABLE LIMIT) CIEL:1306

Denominator

• Number of adult and pediatric ART patients with a viral load result documented in the patient medical record and/or laboratory records in the past 12 month

• We will consider patients with a relevant CIEL:1305 result but only if the patient does not have a CIEL:856 result

Concepts to consider     

• CIEL:856  (for quantitative values )
  Fully Specified Name :HIV VIRAL LOAD
  Mappings: Same as SNOMED CT   315124004

• CIEL:1305  (for qualitative values , in case the patient doesn't have a quantitative value).
  Fully Specified Name: HIV VIRAL LOAD, QUALITATIVE
  Mappings: Same as SNOMED MVP 13051000105000, Narrower-than SNOMED 315124004