R94.113 vs R94.131
R94.113 (Abnormal oculomotor study) compared with R94.131 (Abnormal electromyogram [EMG]), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. R94.131 carries an Excludes1 note covering R94.113: “electromyogram of eye (R94.113)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| R94.113Abnormal oculomotor study | R94.131Abnormal electromyogram [EMG] | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Abnormal oculomotor study is a billable ICD-10-CM diagnosis code (R94.113). | Abnormal electromyogram [EMG] is a billable ICD-10-CM diagnosis code (R94.131). |
| Includes | abnormal results of radionuclide [radioisotope] uptake studies abnormal results of scintigraphy nonspecific abnormal findings on diagnostic imaging by computerized axial tomography [CAT scan] nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging [MRI][NMR] | abnormal results of radionuclide [radioisotope] uptake studies abnormal results of scintigraphy nonspecific abnormal findings on diagnostic imaging by computerized axial tomography [CAT scan] nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging [MRI][NMR] |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources