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G82.22

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🧬 ICD-10-CM G82.22 — Paraplegia, Incomplete

Billable Code Confirmed

ICD-10-CM G82.22 is a valid, billable 5-character diagnosis code. The first three characters (G82) classify paraplegia and quadriplegia, the 4th character (2) specifies paraplegia, and the 5th character (2) denotes the “incomplete” clinical status. No additional characters are required.

Non-Billable Parent Codes — Never Submit These

  • ❌ G82 — 3-character header — Lacks specificity regarding the limbs affected.
  • ❌ G82.2 — 4-character header — Lacks specificity regarding whether the paralysis is complete or incomplete.

Always submit G82.22 (all 5 characters) when incomplete paraplegia or paraparesis is documented.

Clinical Context: Complete vs. Incomplete

Incomplete paraplegia implies that there is partial preservation of sensory and/or motor function below the neurological level of injury (e.g., ASIA Impairment Scale B, C, or D). This distinguishes it from “complete” paraplegia (G82.21), where there is absolutely no motor or sensory function in the lowest sacral segments (ASIA A).

Code Classification

ICD-10-CM Diagnosis Code — wRVU, assistant payable, and global period fields are not applicable. See CPT Procedural Crosswalk and ICD-10-PCS Crosswalk sections for associated procedural billing.

🔍 Code Description

ICD-10-CM G82.22 classifies Paraplegia, incomplete. Paraplegia involves impairment or loss of motor and/or sensory function in the thoracic, lumbar, or sacral segments of the spinal cord, causing dysfunction in the lower half of the body (legs, pelvic organs).

Because it is “incomplete,” the neural pathways traversing the spinal cord lesion are not entirely disrupted. Patients with incomplete paraplegia (or paraparesis) may retain varying degrees of voluntary leg movement, bowel/bladder control, or sensation to touch/pain.

This code is typically used as a manifestation code. The underlying cause—such as traumatic spinal cord injury, spinal stenosis, multiple sclerosis, transverse myelitis, or spinal neoplasm—should be coded to paint a complete clinical picture.

🌳 Code Tree / Hierarchy

G82 Paraplegia (paraparesis) and quadriplegia (quadriparesis) ❌ Non-billable
│
├── G82.2 Paraplegia ❌ Non-billable
│    ├── G82.20 Paraplegia, unspecified ✅ Billable
│    ├── G82.21 Paraplegia, complete ✅ Billable
│    └── G82.22 Paraplegia, incomplete ◀ THIS CODE ✅ Billable
│
└── G82.5- Quadriplegia

Clarifying Ambiguous Terms

The term “Paraparesis” natively maps to the incomplete code (G82.22), because “paresis” by definition means partial weakness or incomplete paralysis, whereas “plegia” often implies complete paralysis.

✅ Includes

The following clinical terms map directly to G82.22 when documented in the medical record:

  • Incomplete paraplegia
  • Paraparesis
  • Lower extremity paresis (bilateral) due to central/spinal lesion
  • ASIA B, C, or D paraplegia

❌ Excludes

Excludes 1 — Cannot Be Coded Simultaneously with CODE

CodeDescriptionNote
G80.-Cerebral palsyMutually exclusive. If the paraplegia is caused by congenital cerebral palsy (spastic diplegia), you must use the appropriate code from the G80 block instead.
G11.4Hereditary spastic paraplegiaMutually exclusive. HSP is a specific, progressive genetic disorder and supersedes the generic paraplegia code.

📋 Clinical Overview

Guidelines for Sequencing Paraplegia

According to the ICD-10-CM Official Guidelines for Coding and Reporting (Section I.C.6):

  1. Underlying Cause Known: If the underlying cause is known (e.g., traumatic spinal cord injury, spinal cord tumor), code the underlying cause first, followed by G82.22 to indicate the resulting paralysis.
  2. Primary Reason for Care: If the primary reason for the encounter is the management of the paralysis itself (e.g., admission to an inpatient rehabilitation facility), G82.22 may be sequenced as the principal diagnosis, with the underlying cause as a secondary code.
  3. Underlying Cause Resolved: If the condition causing the paraplegia is resolved (e.g., an excised benign spinal tumor), code G82.22 as the definitive diagnosis.

Commonly Associated Conditions (Code Also)

Patients with incomplete paraplegia frequently suffer from secondary complications that must be captured:

  • N31.9 — Neuromuscular dysfunction of bladder, unspecified (Neurogenic bladder)
  • K59.2 — Neurogenic bowel, not elsewhere classified
  • M24.50 — Contracture, unspecified joint (if spasticity has caused fixed deformities)
  • Z99.3 — Dependence on wheelchair

💰 HCC Risk Adjustment (CMS-HCC v28)

FieldDetail
CMS-HCC Model Versionv28 (2024-2025 Implementation)
HCC Assignment✅ Mapped — HCC 72
HCC CategorySpinal Cord Disorders

G82.22 is a critical diagnosis for risk adjustment. Survivors of spinal cord injuries or diseases face lifelong complexity. The condition must be captured annually in the outpatient setting using the MEAT criteria (Monitor, Evaluate, Assess, Treat) to establish accurate risk scoring.

🏥 DRG Assignment

MDC 01 — Diseases and Disorders of the Nervous System

DRGTitleEst. Relative Weight*
DRG 056Degenerative Nervous System Disorders with MCC~1.65
DRG 057Degenerative Nervous System Disorders without MCC~0.95

CC/MCC Impact

When a patient is admitted for a non-neurological reason (e.g., sepsis or pneumonia), the presence of G82.22 on the claim acts as a Complication or Comorbidity (CC), recognizing the increased nursing care required to turn the patient, manage elimination, and prevent pressure ulcers.

🛠️ Commonly Associated CPT Codes (PM&R / Outpatient)

CPT CodeDescriptionModifier Notes / wRVU
99214Office or other outpatient visit for an established patient (Moderate MDM)Used routinely for ongoing management of spasticity medications, mobility equipment prescriptions, and therapy coordination. (wRVU: 1.92 · Global: XXX)
97110Therapeutic procedure, 1 or more areas, each 15 minutes; therapeutic exercisesBilled by physical therapists for stretching, strengthening preserved musculature, and gait training.
64642 / 64643Chemodenervation of one extremity; 1 to 4 muscle(s)Frequent procedure in PM&R clinics using botulinum toxin to treat severe spasticity in the lower extremities associated with upper motor neuron lesions.

💊 Coding Scenarios and Examples

Scenario 1 — Inpatient Rehabilitation Admission

Clinical Vignette: A 45-year-old male is transferred to an inpatient rehabilitation facility (IRF) following acute stabilization of a T10 burst fracture from an MVA. He underwent spinal fusion 10 days ago. Neurological exam reveals preserved deep pressure sensation in the bilateral lower extremities, but profound motor weakness (ASIA C). The primary focus of the admission is intensive physical and occupational therapy for his incomplete paraplegia.

Principal Diagnosis:

  • G82.22 — Paraplegia, incomplete (Reason for IRF admission/rehab)

Secondary Diagnoses:

  • S24.103S — Unspecified injury of spinal cord at thoracic level, sequela (The underlying cause, noted as sequela since the acute phase is over)
  • Z89.09 / Z46.x — Status/Device codes as appropriate to reflect equipment management.

Scenario 2 — Outpatient Primary Care Follow-Up

Clinical Vignette: A 60-year-old female presents to primary care. She has a long-standing history of secondary progressive multiple sclerosis. Due to MS progression, she developed incomplete paraplegia 5 years ago and uses a motorized wheelchair. Today she is seen for a routine wellness check, refill of baclofen for spasticity, and a review of her urinary catheter hygiene (Moderate MDM).

Diagnoses:

  • G35.A — Multiple sclerosis (The definitive underlying etiology)
  • G82.22 — Paraplegia, incomplete (The specific functional manifestation)
  • N31.9 — Neuromuscular dysfunction of bladder, unspecified
  • Z99.3 — Dependence on wheelchair

Procedure:

  • 99214 — E/M established patient, Moderate MDM

⚠️ Coding Pitfalls and Tips

Pitfall or Tip
❌Defaulting to Unspecified. Do not use G82.20 (Paraplegia, unspecified) if the medical record clearly indicates the patient has partial feeling or movement in their legs (paraparesis), or if the ASIA scale is documented. Always code to the highest level of specificity (G82.22).
❌Sequencing Errors in Acute Care. During an acute hospital admission for a fresh spinal cord injury, do not sequence G82.22 as the principal diagnosis. The acute trauma code (e.g., S24.-) must be sequenced first according to Chapter 19 guidelines.
✅Query for “Paraplegia NOS”. If a provider simply documents “Paraplegia,” consider a CDI query to ask if it is complete or incomplete. This adds clinical precision and clearly distinguishes the severity of the patient’s impairment.
✅Capture Annually for HCC. The condition is permanent and involves significant daily life impact. It must be addressed, assessed, and coded at least once per calendar year in the outpatient setting to maintain accurate Medicare Advantage or ACA risk adjustment data.^3

📚 Sources

1. CMS/NCHS. ICD-10-CM Official Guidelines for Coding and Reporting, FY2025/FY2026. Section I.C.6: Diseases of the Nervous System.
2. American Spinal Injury Association (ASIA). International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI). (Source for Complete vs. Incomplete clinical definitions).
3. CMS. 2025-2026 Medicare Advantage Risk Adjustment — CMS-HCC Model v28 ICD-10-CM Mappings.
4. American Medical Association (AMA). CPT Professional Edition 2025. Evaluation and Management Guidelines.

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