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Johns Hopkins Health Plans

CHL - Chlamydia Screening

Product Lines:
EHP, Priority Partners and USFHP.

Measurement Period: January 1 - December 31 

Description:
The percentage of persons 16–24 years of age who were recommended for routine chlamydia screening, were identified as sexually active and had at least one test for chlamydia during the measurement period.

Stratifications:
Age as of the last day of the measurement period.

  • 16–20 years.
  • 21–24 years.  

Measure Reporting:
HealthChoice Performance Measure reporting for Priority Partners.  

Improvement Notation:
Increased score indicates improvement.

Initial Population:

  • Measure Item Count: Person. 
  • Age: 16–24 years of age as of the last day of the measurement period.
  • Gender/sex criteria (persons recommended for routine chlamydia screening):
    • Administrative Gender of Female (AdministrativeGender code Female) any time in the person’s history. 
    • Sex assigned at birth (LOINC code 76689-9) of Female (Female Value Set) any time in the person’s history. 
    • Sex Parameter for Clinical Use of Female (SexParameterForClinicalUse code female-typical) during the measurement period.  
  • Benefits: Medical.
  • Continuous Enrollment: The measurement period.
  • Allowable Gap: No more than one gap of ≤45 days during the measurement period. No gaps on the last day of the measurement period.

Data Collection:

  • Administrative
  • Supplemental

Denominator:
Persons recommended for routine chlamydia screening.

  • Claim/encounter data. Persons with a claim or encounter indicating sexual activity during the measurement period. (This excludes laboratory claims with POS 81.)
  • Pharmacy data. Persons with at least one contraceptive medication dispensing event during the measurement period. Acute inpatient discharge, residential treatment or withdrawal management event for a principal diagnosis of substance use disorder on or between January 1 and December 1 of the measurement period.

Numerator:
At least one chlamydia test during the measurement period. 

Best Practice and Measure Tips

  • Screening practices should include universal annual screening for all women in the recommended age range, regardless of symptoms, with additional screening during visits where oral contraceptives, STDs, or urinary symptoms are discussed.
  • Patient education should address STDs, including signs, symptoms, treatment options, and safe sex practices.
  • Screening and sexual history documentation should include a comprehensive sexual history along with the chlamydia test date, results, and any follow up care.
  • Specimen collection may be done via urine sample or vaginal swab, including from the ThinPrep used for Pap testing; all samples must be sent to the contracted lab.
  • Chlamydia screening may not be captured via claims if the service is performed and billed under prenatal and postpartum global billing.

Measure Exclusions

Denominator Exclusions:

  • Sex Assigned at Birth Male any time in the person's history through the last day of the measurement period.
  • Persons in hospice or using hospice services any time during the measurement period.
  • Persons who died any time during the measurement period.
  • A pregnancy test during the measurement period and a prescription for isotretinoin on the date of the pregnancy test through 6 days after the pregnancy test.
  • A pregnancy test during the measurement period and an x-ray on the date of the pregnancy test through 6 days after the pregnancy test.

Exclusion Codes

Sex assigned at birth LOINC: 76689-9

Male

  • LOINC: LA2-8
  • SNOMED CT US Edition: 248153007

Pregnancy Tests

  • CPT: 81025, 84702, 84703
  • LOINC: 19080-1, 19180-9, 20415-6, 20994-0, 2106-3, 2107-1, 2110-5, 2111-3, 2112-1, 2113-9, 2114-7, 2115-4, 2118-8, 2119-6, 21198-7, 25372-4, 25373-2, 34670-0, 45194-8, 55869-2, 55870-0, 56497-1, 80384-1, 80385-8, 83086-9, 93769-8, 99104-2 

Measure Codes

Chlamydia Screening Test

  • CPT: 87110, 87270, 87320, 87490, 87491, 87492, 87494, 87810
  • LOINC: 14463-4, 14464-2, 14465-9, 14467-5, 14474-1, 14513-6, 16600-9, 21190-4, 21191-2, 21613-5, 23838-6, 31775-0, 34710-4, 42931-6, 43304-5, 43404-3, 44806-8, 44807-6, 45068-4, 45069-2, 45072-6, 45073-4, 45075-9, 45084-1, 45089-0, 45090-8, 45091-6, 45093-2, 45095-7, 4993-2, 50387-0, 53925-4, 53926-2, 57287-5, 6353-7, 6356-0, 6357-8, 80360-1, 80361-9, 80362-7, 80363-5, 80364-3, 80365-0, 80367-6, 82306-2, 87949-4, 87950-2, 88221-7, 89648-0, 91860-7, 91873-0