ICD-10-CM R40.243 is the diagnosis code for Glasgow coma scale score 3-8. This code falls under the section "Symptoms and signs involving cognition, perception, emotional state and behavior" within Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where R40.243 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, R40.243 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
R40.243 is the ICD-10-CM diagnosis code for "Glasgow coma scale score 3-8". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of R40.243 is R40.24 ("Glasgow coma scale, total score"). R40.243 provides a more specific classification within this category.
R40.243 is located in Section R40-R46 — "Symptoms and signs involving cognition, perception, emotional state and behavior" within Chapter 18 of the ICD-10-CM Tabular List.
Use R40.243 when the patients documented diagnosis matches "Glasgow coma scale score 3-8" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Glasgow coma scale score 3-8 is R40.243.
Yes, R40.243 can be used as a primary diagnosis code since it is billable and specific.
R40.243 is in Chapter 18 of the ICD-10-CM Tabular List.
Yes, R40.243 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.