AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2017 Issue 4; New/Revised ICD-10-CM Diagnosis Codes
Motor Neuron Disease
Codes G12.23, Primary lateral sclerosis, G12.24, Familial motor neuron disease, and G12.25, Progressive spinal muscle atrophy, have been created to identify these specific types of motor neuron diseases. Primary lateral sclerosis (PLS) is a disorder of the upper motor neurons that affects the face, arms and legs. When the nerve cells of the brain that control voluntary movement start to degenerate, the muscles stiffen and slow movement. PLS usually first causes weakness of the lower extremities, then the trunk, followed by the upper extremities, and bulbar muscles that are responsible for speech and swallowing. When the...
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Article Overview
This article covers selected motor neuron disease subtypes, including clinical background for several named disorders and the introduction of related diagnosis coding. It is useful for coding professionals, clinical documentation staff, and healthcare teams who need to understand the scope of the conditions discussed and the diagnosis categories involved.
Why This Topic Matters
Motor neuron disease terminology can be clinically overlapping, so updated diagnosis coding helps distinguish specific subtypes in documentation and billing workflows.
What You Will Learn
- Which motor neuron disease subtypes are discussed in the article
- How the article frames the clinical context for these disorders
- Why diagnosis specificity matters for documentation and coding
- Which newly created diagnosis categories are referenced in relation to these conditions
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation improvement specialists
- Neurology practices
- Healthcare billing staff
Codes Discussed
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