Valid for Submission
R40.2420 is a billable diagnosis code used to specify a medical diagnosis of glasgow coma scale score 9-12, unspecified time. The code R40.2420 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code R40.2420 might also be used to specify conditions or terms like glasgow coma scale, 10, glasgow coma scale, 11, glasgow coma scale, 12 or glasgow coma scale, 9.
The code R40.2420 describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.
Unspecified diagnosis codes like R40.2420 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Glasgow coma scale, 10
- Glasgow coma scale, 11
- Glasgow coma scale, 12
- Glasgow coma scale, 9
R402420 replaces the following previously assigned ICD-10 code(s):