ICD-10-CM stands for the International Classification of Diseases, 10th Revision, Clinical Modification. It is used by healthcare providers and facilities to code medical diagnoses and procedures, primarily in the United States.
The ICD-10-CM includes a wide array of categories to improve coding and reporting precision, and it replaced the previous ICD-9 system.
In the transition from ICD-9 to ICD-10-CM, several chapters were expanded and refined, but an entirely new chapter was also added:
Chapter 22: Codes for Special Purposes (U00-U85)
This chapter is reserved for the classification of new diseases of uncertain etiology and other special purposes. For example, it includes codes for situations like the public health emergencies caused by new viruses or diseases.
Overall, the addition and expansion of chapters in ICD-10-CM allow for more detailed documentation of patients' conditions, which helps in better management of health data, policy-making, and research.