G83.34
BillableMonoplegia, unspecified affecting left nondominant side
HCC Category Mapping
V28HCC 254 — Monoplegia, Other Paralytic Syndromes
0.000V24HCC 104 — Monoplegia, Other Paralytic Syndromes
0.304ESRDHCC 104 — Monoplegia, Other Paralytic Syndromes
0.000What This Code Means
Weakness or paralysis affecting one limb on the left side of the body in a person whose right side is dominant (right-handed person with left-side weakness).
Coding Tips
- •Identify the specific limb involved (arm or leg) in the medical record
- •This is the most common monoplegia presentation; verify dominance is documented
Clinical Significance
Monoplegia, unspecified affecting the left nondominant side is the most common partially-specified monoplegia code since most people are right-handed. This captures paralysis of one limb on the left side without identifying whether the arm or leg is affected. As the most frequently encountered variant, this code has significant aggregate impact on risk adjustment. Provider query for limb type should be standard practice.
Documentation Requirements
- ✓Documentation of monoplegia affecting the left side
- ✓Right-side dominance documented (left is nondominant)
- ✓Underlying etiology
- ✓Functional impact assessment
- ✓Active treatment plan
Commonly Confused Codes
G83.14 Monoplegia of lower limb, left nondominant — use when the leg is identifiedG83.24 Monoplegia of upper limb, left nondominant — use when the arm is identifiedG83.32 Monoplegia, unspecified, left dominant — left side in a left-handed personG81.94 Hemiplegia, unspecified, left nondominant — both arm and leg involved
Code Hierarchy
└G83Other paralytic syndromes└G83.3Monoplegia, unspecified└G83.34Monoplegia, unspecified affecting left nondominant side
└G83.34Monoplegia, unspecified affecting left nondominant side