R94.131

Billable

Abnormal electromyogram [EMG]

Abnormal electromyogram [EMG]

Status

Billable / Specific

Block

R90-R94

Parent Code

R94.13

Coding Notes

Includes

Conditions included under this code

  • nonspecific abnormal findings on diagnostic imaging by computerized axial tomography [CAT scan]
  • nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging [MRI][NMR]
  • nonspecific abnormal findings on diagnostic imaging by positron emission tomography [PET scan]
  • nonspecific abnormal findings on diagnostic imaging by thermography
  • nonspecific abnormal findings on diagnostic imaging by ultrasound [echogram]
  • nonspecific abnormal findings on diagnostic imaging by X-ray examination
  • abnormal results of radionuclide [radioisotope] uptake studies
  • abnormal results of scintigraphy

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

Related Codes(2)
R94.130

Abnormal response to nerve stimulation, unspecified

BillableR94.138

Abnormal results of function studies of prph nervous sys

Billable
Also Known As / Clinical Terms(157)

SNOMED CT

UMLS

Clinical Terms

  • Polyphasic units - long duration
  • Finding of polyphasic units - long duration
  • Interference pattern showing reduced density
  • EMG positive sharp waves
  • Electromyogram positive sharp waves
  • Motor unit stability - finding
  • Electromyogram abnormal (finding)
  • Asymmetry of H-response
  • High amplitude reduced interference pattern with abnormal spontaneous activity on electromyogram
  • Motor units with extra discharges
  • Spontaneous electromyography activity
  • Abnormal electromyography finding
  • Finding of motor unit morphology
  • Abnormal EMG
  • Polyphasic units
  • Early recruitment of short duration polyphasic motor unit without abnormal spontaneous activity on electromyogram
  • Electromyogram decelerating bursts
  • EMG abnormalities
  • Single muscle fibre observation
  • Stalberg cloud
  • High amplitude reduced interference pattern without abnormal spontaneous activity on electromyogram
  • Reaction of degeneration by electromyogram
  • Overall EMG pattern - finding
  • Single muscle fibre finding
  • Motor unit characteristics - finding
  • Increased tacheodispersion of F-wave
  • Loss of H-response
  • Early recruitment of short duration polyphasic motor unit with abnormal spontaneous activity on electromyogram
  • EMG abnormal
  • Polyphasic units - short duration - finding
  • Interference pattern showing early recruitment
  • Increased latency of H-response
  • Electromyogram abnormal
  • F-wave observations
  • Electromyogram (EMG) abnormal
  • Finding of overall electromyogram pattern
  • Increased latency of F-wave
  • Cathodal closure clonus
  • Single muscle fiber finding
  • Nonspecific abnormal electromyogram (EMG)
  • Exaggeration of H-response
  • Cathodal opening clonus
  • Single muscle fiber observation
  • Motor unit morphology - finding
  • F-wave finding
  • Asymmetry of F-wave
  • Single muscle fiber jitter
  • Electrical EMG silence
  • Polyphasic units - long duration - finding
  • Finding of polyphasic units - short duration
  • High amplitude, reduced interference pattern without abnormal spontaneous activity
  • Polyphasic units - short duration
  • Reaction of denervation by electromyogram
  • Single muscle fibre jitter
  • EMG decelerating bursts
  • Finding of motor unit characteristics
  • EMG abnormality
  • Spontaneous EMG activity
  • Increased chronodispersion of F-wave
  • Complex repetitive electromyography discharges
  • Decreased frequency of F-wave
  • Indeterminate electromyogram pattern
  • Indeterminate EMG pattern
  • Electrical electromyography silence
  • High amplitude, reduced interference pattern with abnormal spontaneous activity
  • Stable motor units
  • EMG interference pattern - finding
  • Anodal opening clonus
  • Finding of motor unit stability
  • Finding of electromyogram interference pattern
  • Interference pattern showing reduced amplitude
  • Continuous motor unit activity
  • Increased insertional activity
  • Unstable motor units
  • Complex repetitive EMG discharges
  • Interference pattern showing increased amplitude
Frequently Asked Questions
What is the ICD-10 code for abnormal electromyogram [emg]?

The ICD-10-CM code for abnormal electromyogram [emg] is R94.131. The full clinical description is "Abnormal electromyogram [EMG]". R94.131 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code R94.131 mean?

ICD-10-CM code R94.131 represents “Abnormal electromyogram [EMG]”. It is classified under Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings and is a billable/specific code that can be used on a claim.

Is R94.131 a billable code?

Yes, R94.131 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is R94.131 in?

R94.131 is in Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (codes R00-R99).

What codes cannot be used with R94.131?

R94.131 has Excludes1 notes indicating codes that cannot be used together with it, including: abnormal findings on antenatal screening of mother (O28.-); diagnostic abnormal findings classified elsewhere - see Alphabetical Index; electromyogram of eye (R94.113).

What SNOMED CT codes does R94.131 map to?

R94.131 maps to 46 SNOMED CT concepts: 54079004, 251559001, 251562003, 35010007, 27396000, and 41 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for R94.131?

R94.131 is linked to 1 UMLS Concept Unique Identifier: C0476403. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does R94.131 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like abnormal electromyogram [emg] affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of R94.131?

There is no direct ICD-11 mapping available for R94.131 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.