Z23 is the ICD-10 billing code that is used for an immunization encounter. This is the mere code that stumped the team at Arlington, Virginia-based Privia Health, a national medical group.
Maureen Clancy, vice president of revenue cycle management at Privia Health claims, “It is very usual code”. What was reason of such hype and noise? Everyone considered that an ICD-10 code should have more digits in contrast to ICD-9 code. But Z23 has contains only 3 characters.
Along with other healthcare providers and payers – Privia health - founded the issue when claims were getting rejected, she states.