270 and 271: HIPAA-compliant transactions for healthcare eligibility.276 and 277: HIPAA-compliant transactions for healthcare claims status.
278: HIPAA-compliant transaction for healthcare services review for pre-certification and referral authorization.
820: HIPAA-compliant transaction for payroll deducted and other group premium payments between employers and health plans.
834: HIPAA-compliant transaction for benefits enrollment and maintenance between employers and health plans.
835: HIPAA-compliant transaction for healthcare claims
payment advice.
837: HIPAA-compliant transaction for professional, institutional and dental claims transactions.
NSF: National Standard Format electronic claim for medical services, to be replaced by the 837 Professional Claim.
UB-92: The Uniform Bill in paper or flat file format used for billing institutional charges, to be replaced the 837 Institutional Claim.
