G83.20
BillableMonoplegia of upper limb affecting unspecified 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 only one arm, but the side (right or left) is not specified in the documentation.
Coding Tips
- •Use this code only when the medical record does not specify which arm is affected; query the provider for clarification when possible
- •This is a less specific code; attempt to obtain laterality and dominance information for more precise coding
Clinical Significance
Monoplegia of the upper limb affecting an unspecified side indicates paralysis of one arm without laterality documentation. Upper extremity monoplegia has profound functional implications for self-care, feeding, dressing, and vocational activities. The unspecified designation should prompt a provider query since laterality and dominance are typically identifiable on examination. This is a condition requiring ongoing rehabilitation and adaptive strategies.
Documentation Requirements
- ✓Documentation of monoplegia or paralysis affecting one upper extremity
- ✓Clinical evidence isolating the deficit to one arm
- ✓Underlying etiology (stroke, brain lesion, nerve injury, etc.)
- ✓Functional impact on self-care and daily activities
- ✓Current treatment and rehabilitation plan
- ✓Active condition status
Commonly Confused Codes
G83.21-G83.24 Monoplegia of upper limb with laterality — preferred when side and dominance are knownG83.0 Diplegia of upper limbs — both arms affected, not just oneG81.90 Hemiplegia, unspecified — both arm and leg on same side affectedM62.81 Muscle weakness — generalized weakness, not paralysis of a specific limbG56.00 Carpal tunnel syndrome — peripheral nerve entrapment, not monoplegia
Code Hierarchy
└G83Other paralytic syndromes└G83.2Monoplegia of upper limb└G83.20Monoplegia of upper limb affecting unspecified side
└G83.20Monoplegia of upper limb affecting unspecified side