I can tell you that the International Classification of Diseases (ICD) is updated regularly to reflect changes in medical practices, diagnoses, and procedures. The current version of ICD is the 10th revision, known as ICD-10, which was first published by the World Health Organization (WHO) in 1990.
ICD-10 is updated twice a year by WHO with the latest updates available online. These updates are called “ICD-10-CM/PCS updates” and they contain new codes, revisions to existing codes, and deletions of outdated codes. These updates usually take effect on October 1st and April 1st of each year, and healthcare providers are required to use the most up-to-date codes for medical billing and documentation purposes.
Regarding Post COVID-19 codes, ICD-10 already includes a specific code for the COVID-19 disease, which is U07.1 (COVID-19, virus identified). This code is used to indicate a diagnosis of COVID-19 confirmed by laboratory testing. However, the ICD-10 system is not yet updated with specific codes for the long-term effects of COVID-19, which are being closely monitored and studied by medical experts worldwide.