ICD-10-CM Code for Quadriplegia with Intact Cognition
The appropriate ICD-10-CM code for a patient with quadriplegia who has intact cognitive function is G82.50 (Quadriplegia, unspecified) or a more specific code from the G82.5 series based on the level and completeness of the paralysis.
Understanding the ICD-10-CM Structure for Quadriplegia
The ICD-10-CM uses the G82.5 series specifically for quadriplegia (also called tetraplegia), which refers to paralysis of all four limbs. The key distinction here is that cognitive function is not part of the quadriplegia coding—these codes describe only the physical motor impairment 1.
Specific G82.5 Codes:
- G82.50: Quadriplegia, unspecified
- G82.51: Quadriplegia, C1-C4 complete
- G82.52: Quadriplegia, C1-C4 incomplete
- G82.53: Quadriplegia, C5-C7 complete
- G82.54: Quadriplegia, C5-C7 incomplete
Why Cognitive Status Is Coded Separately
The ICD-10-CM system separates physical disability from cognitive impairment 1. Your patient's intact cognition means you would not add any codes from:
- The F-series (mental and behavioral disorders)
- The G30-G31 series (dementia codes)
- The R41 series (cognitive dysfunction codes)
This separation is clinically important because quadriplegia can occur from spinal cord injury without any brain involvement, leaving cognition completely intact.
Clinical Documentation Requirements
To code accurately, your documentation should specify:
- Level of injury (C1-C4 vs. C5-C7)
- Completeness (complete vs. incomplete paralysis)
- Underlying cause (traumatic vs. non-traumatic)
If the underlying etiology is known (e.g., spinal cord injury, multiple sclerosis, cervical myelopathy), code that condition first, followed by the G82.5 code as a manifestation 1.
Common Pitfall to Avoid
Do not confuse quadriplegia with cognitive impairment. The evidence shows that medical coders sometimes conflate physical disability with cognitive status, particularly when documentation is unclear 2. Your patient's preserved cognition should be explicitly documented in the medical record to prevent miscoding, but it does not change the quadriplegia code itself.
If Functional Status Assessment Is Needed
While not part of the ICD-10-CM code, functional assessment tools like the Barthel Index can document the degree of physical disability and need for assistance with activities of daily living 3. A patient with quadriplegia but intact cognition might score very low on mobility items (0-15 points for transfers, 0-15 points for mobility) but could potentially score higher on cognitive-dependent tasks if adaptive equipment is provided.
The bottom line: Use G82.5X codes for the physical paralysis, document cognitive function separately in the clinical notes, and do not add cognitive impairment codes unless they are actually present.