ICD-10-CM · Chapter 18 · R00-R99
R94 Abnormal results of function studies
Includes
- abnormal results of radionuclide [radioisotope] uptake studies
- abnormal results of scintigraphy
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| R94..0 | Abnormal results of function studies of central nervous system | No |
| R94..01 | Abnormal electroencephalogram [EEG] | Yes |
| R94..02 | Abnormal brain scan | Yes |
| R94..09 | Abnormal results of other function studies of central nervous system | Yes |
| R94..1 | Abnormal results of function studies of peripheral nervous system and special senses | No |
| R94..11 | Abnormal results of function studies of eye | No |
| R94..110 | Abnormal electro-oculogram [EOG] | Yes |
| R94..111 | Abnormal electroretinogram [ERG] | Yes |
| R94..112 | Abnormal visually evoked potential [VEP] | Yes |
| R94..113 | Abnormal oculomotor study | Yes |
| R94..118 | Abnormal results of other function studies of eye | Yes |
| R94..12 | Abnormal results of function studies of ear and other special senses | No |
| R94..120 | Abnormal auditory function study | Yes |
| R94..121 | Abnormal vestibular function study | Yes |
| R94..128 | Abnormal results of other function studies of ear and other special senses | Yes |
| R94..13 | Abnormal results of function studies of peripheral nervous system | No |
| R94..130 | Abnormal response to nerve stimulation, unspecified | Yes |
| R94..131 | Abnormal electromyogram [EMG] | Yes |
| R94..138 | Abnormal results of other function studies of peripheral nervous system | Yes |
| R94..2 | Abnormal results of pulmonary function studies | Yes |
| R94..3 | Abnormal results of cardiovascular function studies | No |
| R94..30 | Abnormal result of cardiovascular function study, unspecified | Yes |
| R94..31 | Abnormal electrocardiogram [ECG] [EKG] | Yes |
| R94..39 | Abnormal result of other cardiovascular function study | Yes |
| R94..4 | Abnormal results of kidney function studies | Yes |
| R94..5 | Abnormal results of liver function studies | Yes |
| R94..6 | Abnormal results of thyroid function studies | Yes |
| R94..7 | Abnormal results of other endocrine function studies | Yes |
| R94..8 | Abnormal results of function studies of other organs and systems | Yes |
Last reviewed: September 2026