R94.0
ICD-10Non-billable categoryAbnormal results of function studies of cnsl
Official ICD-10-CM descriptor (FY2026)
Abnormal results of function studies of central nervous system
R94.0 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
ICD-10-CM FY2026 defines 3 codes beneath R94.0. See the ICD-10-CM index for what this site publishes.
Related codes in R94
- R94.1Abn results of functn studies of prph nrv sys & specl sensescategory
- R94.2Abnormal results of pulmonary function studies
- R94.3Abnormal results of cardiovascular function studiescategory
- R94.4Abnormal results of kidney function studies
- R94.5Abnormal results of liver function studies
- R94.6Abnormal results of thyroid function studies
- R94.7Abnormal results of other endocrine function studies
- R94.8Abnormal results of function studies of organs and systems
Where this code sits
- Parent code
- R94
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.