MedicaidBilling CodesMedium impact
Use of ICD-10-CM Z Codes for Social Determinants of Health pdf
Connecticut Medicaid (HUSKY Health)·CT·Coding
We identified it
Jun 20, 2026
Summary
Connecticut Medicaid (HUSKY Health) is strongly recommending that providers include Social Determinants of Health (SDOH) Z codes on claim submissions to better understand member needs and inform future payment models. Z codes can be used in any diagnosis field except primary diagnosis, with up to 12 codes on professional claims and 26 on institutional claims.
Action Required
Immediately: For Connecticut HUSKY Health members, providers should identify applicable Social Determinants of Health Z codes during patient encounters and include them in secondary diagnosis fields (never primary) on claims. Billing team should update encounter forms and train providers on the provided Z code list for housing, education, employment, social environment, and psychosocial circumstances. Claims will be denied if Z codes are used as primary diagnosis.