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Coding Tip: Glasgow Coma Scale Coding OCG Update for FY2021

by Sep 29, 2020Coding Tips, Education, ICD-10, Patricia Maccariella-Hafey0 comments

Patricia Maccariella-Hafey, RHIA, CDIP, CCS, CCS-P, CIRCC has over 35 years expertise in the areas of ICD-9-CM, CPT, DRG/APC validation Professional Fee E&M coding, Interventional Radiology, and Facility E&M coding. Patricia is currently Director of Education a healthcare consulting firm specializing in coding compliance review, education and contract coding services. Pat Maccariella‑Hafey RHIA, CDIP, CCS, CCS‑P, CIRCC Executive Director Of Education AHIMA‑Approved ICD‑10‑CM/PCS Trainer and Ambassador

The FY2021 Official Guidelines for Coding and Reporting made a change that was not clearly evident in the updated guidelines. Below you will see that the lines for using the coma scale codes for “acute cerebrovascular disease or sequelae of cerebrovascular disease codes” and “The coma scale may also be used to assess the status of the central nervous system for other non-trauma conditions, such as monitoring patients in the intensive care unit regardless of medical condition.” have been removed for the Glasgow coma scale code guidelines regarding coma scale code assignment. This indicates that the Glasgow coma scale codes should be used in conjunction with traumatic brain injury codes only beginning with discharges October 1, 2020. AHA discussed this change in the 4Q2020 Coding Clinic.

HIA also sent a letter to AHA and they confirmed that the guideline has been changed back to the original directive that the GCS codes ONLY be used for cases involving traumatic brain injury.  The Cooperating Parties decided to roll back the GCS codes to their original intent to avoid confusion in application.

FY2021 ICD-10-CM Official Guidelines for Coding and Reporting FY 2021 Page 79 of 126
e. Coma scale
The coma scale codes (R40.2-) can be used in conjunction with traumatic brain injury codes. These codes are primarily for use by trauma registries, but they may be used in any setting where this information is collected. The coma scale codes should be sequenced after the diagnosis code(s).

These codes, one from each subcategory, are needed to complete the scale. The 7th character indicates when the scale was recorded. The 7th character should match for all three codes.

PREVIOUS FY2020 ICD-10-CM Official Guidelines for Coding and Reporting FY 2020
e. Coma scale
The coma scale codes (R40.2-) can be used in conjunction with traumatic brain injury codes, acute cerebrovascular disease or sequelae of cerebrovascular disease codes. These codes are primarily for use by trauma registries, but they may be used in any setting where this information is collected. The coma scale may also be used to assess the status of the central nervous system for other non-trauma conditions, such as monitoring patients in the intensive care unit regardless of medical condition. The coma scale codes should be sequenced after the diagnosis code(s).

These codes, one from each subcategory, are needed to complete the scale. The 7th character indicates when the scale was recorded. The 7th character should match for all three codes.

References
FY2021 Official Guidelines for Coding and Reporting

AHA Letter Reference #50039169.1020

The information contained in this post is valid at the time of posting. Viewers are encouraged to research subsequent official guidance in the areas associated with the topic as they can change rapidly.

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