Concepts for Calculation of TX_PVLS

This project is using the TX_PVLS indicator for our proof of concept. This indicator represents the percentage of ART patients with a suppressed viral load (VL) result (<1000 copies/ml) documented in the medical or laboratory records/laboratory information systems (LIS) within the past 12 months

This project is using the TX_PVLS indicator for our proof of concept.

This indicator represents the percentage of ART patients with a suppressed viral load (VL) result (<1000 copies/ml) documented in the medical or laboratory records/laboratory information systems (LIS) within the past 12 months

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