2021 ICD10 Coding Books

Need help figuring out which ICD10 book should you use?

ICD-10-CM: Diagnosis codes for physician offices, clinics, and practices. Replaced ICD9 Volumes 1 and 2.

ICD-10-PCS: Includes additional inpatient procedure codes for hospitals. Replaced ICD9 Volume 3.

ICD10 for Home Health and Nursing: Used for home health, hospices, skilled nursing, and post-acute facilities.

The diagnosis code set includes the following proposed 2021 ICD-10-CM changes:

  • 490 new codes
  • 47 revised codes
  • 58 deleted codes
  • ICD-10-CM Official Coding Guidelines for COVID-19
  • New chapter on special purpose codes including U codes, vaping and COVID-19

The procedure code set includes the following proposed 2021 ICD-10-PCS changes:

  • There are 544 new codes
  • Several changes to Device and Substance Keys appendices
  • Revisions to guidelines for 2021
  • There is no GEMs file this year per (80 FR 49388)

CMS Deadlines: CMS no longer allows a 90-day grace period for using discontinued codes, so get your books early and stay up-to-date! You must use valid ICD10 codes for services performed on or after October 1, 2020.

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