Non-Billable / Non-Specific Code
ICD-10-CM R94 is the diagnosis code for Abnormal results of function studies. This code falls under the section "Abnormal findings on diagnostic imaging and in function studies, without diagnosis" within Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. 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 R94 sits in the ICD-10-CM classification helps ensure proper coding:
No, R94 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
R94 is the ICD-10-CM diagnosis code for "Abnormal results of function studies". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
R94 is located in Section R90-R94 — "Abnormal findings on diagnostic imaging and in function studies, without diagnosis" within Chapter 18 of the ICD-10-CM Tabular List.
R94 has 9 sub-code(s) that provide more specific detail: R94.0, R94.1, R94.2, R94.3, R94.4 and more.
Use R94 when the patients documented diagnosis matches "Abnormal results of function studies" 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 Abnormal results of function studies is R94.
No, R94 is non-billable. Use a more specific sub-code for primary diagnosis billing.
R94 is in Chapter 18 of the ICD-10-CM Tabular List.
Yes, R94 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.