R94 Abnormal results of function studies
ICD-10-CM category R94 sits in Chapter 18 (Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified, R00-R99). It contains 23 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Subcategories
R94.0 Abnormal results of function studies of cnslR94.1 Abn results of functn studies of prph nrv sys & specl sensesR94.11 Abnormal results of function studies of eyeR94.12 Abn results of function studies of ear and oth sp sensesR94.13 Abnormal results of function studies of prph nervous sysR94.3 Abnormal results of cardiovascular function studies
Billable codes in R94
| Code | Description |
|---|---|
R94.01 | Abnormal electroencephalogram [EEG] |
R94.02 | Abnormal brain scan |
R94.09 | Abnormal results of other function studies of central nervous system |
R94.110 | Abnormal electro-oculogram [EOG] |
R94.111 | Abnormal electroretinogram [ERG] |
R94.112 | Abnormal visually evoked potential [VEP] |
R94.113 | Abnormal oculomotor study |
R94.118 | Abnormal results of other function studies of eye |
R94.120 | Abnormal auditory function study |
R94.121 | Abnormal vestibular function study |
R94.128 | Abnormal results of other function studies of ear and other special senses |
R94.130 | Abnormal response to nerve stimulation, unspecified |
R94.131 | Abnormal electromyogram [EMG] |
R94.138 | Abnormal results of other function studies of peripheral nervous system |
R94.2 | Abnormal results of pulmonary function studies |
R94.30 | Abnormal result of cardiovascular function study, unspecified |
R94.31 | Abnormal electrocardiogram [ECG] [EKG] |
R94.39 | Abnormal result of other cardiovascular function study |
R94.4 | Abnormal results of kidney function studies |
R94.5 | Abnormal results of liver function studies |
R94.6 | Abnormal results of thyroid function studies |
R94.7 | Abnormal results of other endocrine function studies |
R94.8 | Abnormal results of function studies of other organs and systems |
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