🧬 ICD-10 CM G82.53 — Quadriplegia, C5-C7 Complete
Billable Code Confirmed
ICD-10 CM G82.53 is a fully specified 5-character ICD-10-CM code that is valid and billable for FY2026. The 5th character “3” designates complete neurologic involvement at the C5-C7 lower cervical level, distinguishing it from incomplete injury at the same level (G82.54) and from higher cervical complete injury (G82.51). No additional characters are required; this code stands alone as written.
Non-Billable Parent Codes
G82 (Paraplegia and quadriplegia) is a 3-character non-billable category header that cannot be submitted on a claim — it lacks specificity for paralysis type, level, and completeness. G82.5 (Quadriplegia) is a 4-character non-billable subcategory that still does not specify the spinal level or completeness of injury. Both parent codes must be further extended to the 5th character before claim submission; always drill to the fully specified level.
Clinical Context
The distinction between “complete” (G82.53) and “incomplete” (G82.54) quadriplegia at C5-C7 is governed by formal ASIA (American Spinal Injury Association) classification — complete indicates total absence of motor and sensory function below the neurological level of injury, including sacral segments S4-S5. C5-C7 complete injury presents differently from C1-C4 complete injury in that diaphragmatic function is typically preserved (phrenic nerve exits C3-C5), making ventilator independence more likely but not guaranteed. Coders must not default to unspecified (G82.50) when the provider has documented the level and completeness, as this constitutes a loss of coding specificity with HCC and DRG implications.
Code Classification
ICD-10 CM G82.53 is a diagnosis code classifying the neurological functional outcome of spinal cord damage at C5-C7 — it does not capture the etiology or the procedure. When quadriplegia results from a traumatic SCI, codes from the S14.1xx- series (Injury of cervical spinal cord, C5-C7 level) should accompany G82.53 per ICD-10-CM guideline I.C.6. When resulting from a non-traumatic etiology such as G35.D (Multiple sclerosis), G95.11 (Acute infarction of spinal cord), or neoplasm, the underlying condition sequences first with G82.53 as an additional manifestation code.
🔍 Code Description
ICD-10 CM G82.53 classifies complete quadriplegia (also called complete tetraplegia) resulting from total neurological disruption at the C5 through C7 cervical spinal cord levels. At C5-C7 complete injury, all four extremities are paralyzed with complete loss of voluntary motor and sensory function below the level of injury, and sacral sparing is absent by definition. Unlike C1-C4 injuries, patients with C5 injuries typically retain some shoulder abduction (deltoid) and elbow flexion (biceps) function, while C6 injuries may preserve wrist extension, and C7 injuries may retain some elbow extension (triceps) and wrist flexion — though all lower extremity, trunk, and hand intrinsic function is absent in complete injury. The clinical distinction in retained upper extremity function is critical for rehabilitation goal-setting, functional classification, and assistive technology prescription, but does not change the ICD-10-CM code assignment — only level and completeness drive the code.
The ICD-10 CM Alphabetic Index routes “Quadriplegia, complete, C5-C7” directly to G82.53, confirmed in the Tabular List under block G80-G83. Associated codes that should accompany G82.5, confirmed in the Tabular List under block b. Associated codes that should accompany G82.53 in the inpatient record include N31.9 (neurogenic bladder, unspecified), L89.xxx (pressure ulcer, stage and site required), G90.3 (autonomic dysreflexia, when documented), and R25.2 (spasticity/cramp and spasm). ASIA Grade A documentation in the medical record is the primary clinical indicator supporting “complete” classification and is the strongest CDI prompt when not explicitly stated in provider notes — imaging alone (MRI signal change) is not sufficient to assign completeness without physician documentation.
🌳 Code Tree / Hierarchy
G82 — Paraplegia (paraparesis) and Quadriplegia (quadriparesis) ❌ Non-billable
│
├── G82.2 — Paraplegia, unspecified ✅ Billable
├── G82.20 — Paraplegia, unspecified ✅ Billable
├── G82.21 — Paraplegia, complete ✅ Billable
├── G82.22 — Paraplegia, incomplete ✅ Billable
│
└── G82.5 — Quadriplegia ❌ Non-billable
│
├── G82.50 — Quadriplegia, unspecified ✅ Billable
├── G82.51 — Quadriplegia, C1-C4 complete ✅ Billable
├── G82.52 — Quadriplegia, C1-C4 incomplete ✅ Billable
├── G82.53 — Quadriplegia, C5-C7 complete ◀ THIS CODE ✅ Billable
└── G82.54 — Quadriplegia, C5-C7 incomplete ✅ Billable
Why G82.53 vs. G82.51: Level Specificity Has Real Clinical Stakes
ICD-10 CM G82.51 (C1-C4 complete) and G82.53 (C5-C7 complete) both map to HCC 180 with identical RAF values, but they are not interchangeable — C5-C7 complete injury carries a distinctly different respiratory, functional, and resource utilization profile. Assigning G82.53 when documentation supports it demonstrates coding precision that holds up under RAD-V audit, reflects accurate clinical acuity in quality reporting, and appropriately guides payer utilization management decisions around ventilator management, rehabilitation level of care, and assistive technology coverage.
Tip
Always verify whether the C5-C7 complete SCI is traumatic, non-traumatic vascular, inflammatory, or neoplastic — the underlying etiology code sequences first, and the specific S14.1xx- causal code (for trauma) or the underlying disease code must accompany G82.53 to tell the complete clinical story. Missing the etiology code is one of the most common pitfalls in SCI coding and can cause DRG grouper missequencing.
✅ Includes
- Complete tetraplegia C5-C7 — Total loss of motor and sensory function below C7, with no sacral sparing; ASIA Grade A on formal neurological assessment by neurology or PM&R.
- Low cervical complete spinal cord syndrome — Encompasses traumatic and non-traumatic etiologies that produce complete cord disruption between C5 and C7, confirmed by clinical exam and supported by imaging.
- Complete SCI at C5, C6, or C7 level with full lower extremity and hand intrinsic paralysis — Partial upper extremity function (shoulder, elbow, or wrist) may be retained depending on the exact level, but this does not alter the “complete” classification when sacral sparing is absent.
❌ Excludes
Excludes 1
- G80.8 — Other cerebral palsy (including congenital spastic quadriplegia): This is a hard Excludes 1 — congenital quadriplegia from cerebral palsy must be coded to G80.8, not G82.53. These two codes represent mutually exclusive etiologic pathways (acquired spinal cord injury vs. congenital brain-based motor dysfunction) and cannot appear together on the same claim.
- F44.4 — Conversion disorder with motor symptom or deficit: Psychogenic (hysterical) paralysis that mimics quadriplegia is coded to F44.4 and is mutually exclusive with G82.53. If clinical workup confirms an organic spinal cord etiology, F44.4 is dropped; if the paralysis is confirmed functional/psychogenic, G82.53 must not be used.
Danger
A common Excludes 1 audit error involves assigning G82.53 to a patient with long-standing spastic quadriplegia due to cerebral palsy who was mislabeled as having a cervical SCI on an old problem list. Always validate the etiology through the history of present illness, imaging, and physician documentation before assigning G82.53 — a congenital CP quadriplegia patient who has never had a cervical SCI event should never carry this code.
Excludes 2
- ICD-10 CM R53.2 — Functional quadriplegia: Functional quadriplegia reflects severe debility and inability to move limbs due to frailty, advanced dementia, or non-neurological causes — it is not true spinal cord-based paralysis. When a patient has both documented functional quadriplegia AND a distinct organic paralytic condition at C5-C7, both R53.2 and G82.53 may be reported simultaneously under the Excludes 2 convention, though this combination warrants careful physician query to confirm clinical accuracy.
📋 Clinical Overview
Complete vs. Incomplete: C5-C7 Level Code Selection
At the C5-C7 level, the clinical distinction between complete and incomplete injury is particularly high-stakes because incomplete injuries at these levels can carry significantly better functional prognoses — central cord syndrome, the most common cervical SCI syndrome, is an incomplete injury that frequently presents in older adults with cervical spondylosis and is coded differently. The PM&R or neurology consult note with formal ASIA classification is the gold-standard source for completeness documentation; coders should not infer completeness from MRI findings, motor deficits described in nursing notes, or physical therapy assessments alone. This is a prime CDI query scenario when completeness is not explicitly stated in attending documentation.
| Feature | G82.53 | G82.54 | G82.51 |
|---|---|---|---|
| Spinal Level | C5-C7 | C5-C7 | C1-C4 |
| Neurologic Completeness | Complete — no motor or sensory function below injury including S4-S5 | Incomplete — some preserved motor or sensory function below injury | Complete — no function below C4 including S4-S5 |
| ASIA Grade | Grade A | Grade B, C, or D | Grade A |
| Respiratory Impact | Diaphragm usually preserved (C3-C5 phrenic); ventilator dependence less common but possible | Variable; higher probability of respiratory independence | High ventilator dependence, especially C1-C3 |
| Upper Extremity Function | Some proximal UE function possible (shoulder, elbow, wrist depending on exact level) | More preserved UE function likely; prognosis for hand function varies | Minimal to no UE function |
| HCC V28 Mapping | HCC 180 — RAF 1.125 | HCC 180 — RAF 1.125 | HCC 180 — RAF 1.125 |
| DRG Pairing | DRG 052/053 | DRG 052/053 | DRG 052/053 |
| CDI Priority | High — query for ASIA grade, sacral sparing, completeness documentation | High — query for any retained function, syndrome type | Highest — query for ventilator status and ASIA grade |
Important
Central cord syndrome is the most common SCI syndrome in adults over 60 and presents at the C5-C7 level with greater upper extremity weakness than lower — it is an incomplete injury and should never be coded as G82.53. When a provider documents “central cord syndrome” in a C5-C7 injury, the correct code is S14.129A for the acute encounter, not G82.53; query immediately if both terms appear in the same note.
Manifestations & Symptom Burden
- Neurogenic bladder (N31.9) — Loss of supraspinal bladder control is universal in complete C5-C7 SCI and must be separately coded on every inpatient encounter when documented, as it is a distinct reportable condition with direct care management implications.
- Pressure injury (L89.xxx) — Immobility and sensory loss below the injury level create high pressure ulcer risk; always code to the highest documented stage and specific anatomic site as this can function as a CC or MCC.
- Autonomic dysreflexia (G90.3) — Life-threatening hypertensive episodes from noxious stimuli below the injury level occur in SCI at T6 and above, which includes all C5-C7 injuries; systematically undercoded and should trigger a CDI query in any C5-C7 SCI inpatient.
- Spasticity (R25.2) — Upper motor neuron spasticity develops in the subacute and chronic phases of complete cervical SCI and is separately reportable when documented as an active condition being evaluated or managed.
- Neurogenic bowel (K59.4) — Loss of colorectal neurological control produces neurogenic bowel in virtually all complete cervical SCI patients; this is a separately codeable condition when documented and managed during the encounter.
Tip
Manifestation coding under ICD-10-CM guideline I.C.6 requires that when G82.53 is the result of an underlying disease (e.g., G35.D Multiple sclerosis, G95.11 spinal cord infarction), the causative condition sequences first. In the acute traumatic SCI admission, the S14.1xxA injury code is the principal diagnosis per guideline I.C.19, and G82.53 follows. In subsequent rehabilitation or chronic care admissions, G82.53 can legitimately serve as the principal diagnosis when it is the condition chiefly responsible for the admission.
💰 HCC Risk Adjustment
| HCC Model | Category | Label | Community Non-Dual Aged RAF |
|---|---|---|---|
| CMS-HCC V28 (PY2026) | HCC 180 | Quadriplegia | 1.125 |
| CMS-HCC V24 (legacy) | HCC 70 | Quadriplegia | ~1.174 (legacy) |
ICD-10 CM G82.53 maps to CMS-HCC V28 HCC 180 (Quadriplegia) with a community non-dual aged RAF of 1.125 at 100% V28 phase-in for PY2026. All five G82.5x quadriplegia codes (G82.50-G82.54) map to HCC 180, meaning level and completeness specificity does not alter the RAF value but remains essential for coding accuracy, quality reporting, and RAD-V audit defensibility. HCC 180 does not carry forward year to year — it must be captured on a qualifying encounter every calendar year to contribute to the following plan year’s risk score, making annual documentation and coding critical for Medicare Advantage patients. For inpatient profee coders, any encounter where the attending, consulting neurologist, or physiatrist evaluates and manages a C5-C7 complete quadriplegia patient is a valid HCC capture opportunity.
🏥 MS-DRG Assignment
| DRG | Title | Trigger Condition |
|---|---|---|
| DRG 052 | Spinal Disorders and Injuries with CC/MCC | G82.53 as principal + documented CC or MCC |
| DRG 053 | Spinal Disorders and Injuries without CC/MCC | G82.53 as principal, no qualifying CC/MCC |
ICD-10 CM G82.53 assigned as the principal diagnosis sequences into MDC 01 (Diseases and Disorders of the Nervous System) and drives DRG 052/053 assignment solely based on CC/MCC presence. While C5-C7 complete quadriplegia patients are less likely than C1-C4 patients to require immediate mechanical ventilation, they consistently generate comorbidities — neurogenic bladder (N31.9), pressure ulcers (L89.xxx), autonomic dysreflexia (G90.3), and urinary tract infections — that can qualify as CC or MCC when properly documented and coded. Coders should aggressively review the record for UTI (N39.0), sepsis (A41.9), stage 3-4 pressure ulcers (L89.xx3-L89.xx4), and respiratory complications, all of which are MCC triggers that shift assignment from lower-weighted DRG 053 to DRG 052. In the acute traumatic SCI admission, the S14.1xx-S14.107A injury code typically sequences as principal, which may route the case to a trauma-based DRG instead — always confirm with your facility’s FY2026 grouper.
🔗 Related ICD-10-CM Codes
Quadriplegia & Spinal Cord Injury Family
- G82.50 — Quadriplegia, unspecified (avoid when level and completeness are documented)
- G82.51 — Quadriplegia, C1-C4 complete (higher cervical level, typically ventilator-dependent)
- G82.52 — Quadriplegia, C1-C4 incomplete
- G82.54 — Quadriplegia, C5-C7 incomplete (same level, preserved function below injury)
- G82.21 — Paraplegia, complete (when injury is thoracic/lumbar with lower extremity involvement only)
- S14.105A — Complete lesion at C5 level of cervical spinal cord, initial encounter
- S14.106A — Complete lesion at C6 level of cervical spinal cord, initial encounter
- S14.107A — Complete lesion at C7 level of cervical spinal cord, initial encounter
Common Complication & Comorbidity Codes
- N31.9 — Neurogenic bladder, unspecified
- G90.3 — Autonomic dysreflexia
- L89.90 — Pressure ulcer of unspecified site, unspecified stage (code to highest specificity)
- K59.4 — Neurogenic bowel, not elsewhere classified
- R25.2 — Cramp and spasm (spasticity)
- N39.0 — Urinary tract infection, site not specified (common CC trigger)
- M62.50 — Muscle wasting and atrophy, not elsewhere classified, unspecified site
🛠️ Commonly Associated CPT Codes
- 99233 — Subsequent hospital inpatient or observation care, high complexity: The MDM burden of managing C5-C7 complete quadriplegia with multiple active complications routinely supports high-complexity subsequent care; document the number of problems addressed, data reviewed, and risk of morbidity in the assessment and plan.
- 97530 — Therapeutic activities, each 15 minutes: PT/OT therapeutic activity is a cornerstone of inpatient SCI rehabilitation and is billed in 15-minute increments; time-based documentation per CMS requirements is mandatory, and NCCI bundling with other same-date therapy codes must be reviewed.
- 97150 — Therapeutic procedure(s), group (2 or more individuals): Group therapy is commonly used in the SCI rehab setting for ADL retraining and community reintegration skills; reported separately from individual therapeutic activities.
- 95923 — Testing of autonomic nervous system function: Autonomic function testing is indicated for C5-C7 SCI patients with symptoms of autonomic dysreflexia; prior auth is frequently required by commercial payers and Medicare Advantage plans.
- 64999 — Unlisted procedure, nervous system: Used when novel neuromodulation, spinal cord stimulation for spasticity, or intrathecal baclofen pump implantation procedures are performed and no specific CPT code fully describes the service; requires detailed documentation and often payer LOA.
NCCI Bundling Considerations
Multiple therapy CPT codes (97110, 97530, 97535) billed on the same date in the rehabilitation setting are subject to NCCI component editing — distinct time-based documentation is required for each service to support separate reporting, and modifier -59 or -XS may be needed when clinically justified. Critical care codes (99291-99292), when applicable in acute decompensation, bundle ventilator management and most monitoring services, preventing separate reporting of those component codes. Always confirm active NCCI edits via the CMS NCCI policy manual prior to unbundling any paired codes in the SCI setting.
🔬 ICD-10-PCS Crosswalk
- 00HV3MZ — Insertion of neurostimulator lead into spinal canal, percutaneous approach: Used when a spinal cord stimulator lead is placed for spasticity management or pain in the C5-C7 complete SCI patient; root operation is “Insertion” in the Central Nervous System body system (section 0, body system 0).
- 0RG10AJ — Fusion of cervical vertebral joint using interbody fusion device, anterior approach: Anterior cervical discectomy and fusion (ACDF) is frequently performed in traumatic C5-C7 fracture-dislocations; the specific cervical vertebral joint level and approach must be reflected in the 7-character PCS code.
- 0BH17EZ — Insertion of endotracheal airway into trachea, via natural or artificial opening: Airway management is coded for acute C5-C7 SCI patients who require intubation during the acute stabilization phase, even if ventilator weaning is achieved before discharge.
- F07Z6ZZ — Motor treatment of spinal cord using manual therapy techniques: Inpatient rehabilitation PCS codes in section F document the therapeutic interventions targeting motor re-education, upper extremity strengthening, and functional mobility in C5-C7 SCI patients admitted to a rehabilitation unit.
💊 Coding Scenarios and Examples
Scenario 1 — Acute Traumatic Admission A 34-year-old male is admitted following a motor vehicle accident with fracture-dislocation at C6-C7 and MRI-confirmed complete spinal cord transection. Neurosurgery performs posterior cervical fusion at C6-C7. Neurology documents ASIA Grade A quadriplegia at C6. The patient does not require mechanical ventilation. UTI develops on day 4 and is treated with IV antibiotics.
- Correct coding (principal → additional): S14.106A (Complete lesion at C6 level, initial encounter) → G82.53 → N39.0 (UTI — CC trigger) → S12.500A or S12.600A (cervical fracture, per imaging) → PCS fusion code
- Sequencing: Traumatic SCI code S14.106A sequences as principal per guideline I.C.19; G82.53 captures the resulting functional deficit; N39.0 as CC drives DRG 052.
- CDI note: Query the surgeon and neurologist to explicitly document “complete” cord transection and ASIA Grade A in the operative note and discharge summary to support G82.53 over G82.50 or G82.54.
Scenario 2 — Inpatient Rehabilitation Admission A 52-year-old female with known C6 complete quadriplegia (3 years post-injury) is admitted to inpatient rehab for functional mobility training and bowel/bladder management program initiation. She has documented neurogenic bladder managed with intermittent catheterization and a stage 2 sacral pressure ulcer present on admission.
- Correct coding: G82.53 (principal — condition chiefly responsible for rehab admission) → N31.9 (Neurogenic bladder, unspecified — CC) → L89.152 (Pressure ulcer of sacral region, stage 2 — CC) → K59.4 (Neurogenic bowel)
- Sequencing: G82.53 is appropriate as principal in the post-acute rehab setting per UHDDS; N31.9 and L89.152 as CCs drive DRG 052 assignment.
- CDI note: Ensure pressure ulcer staging is documented by the treating physician or wound care team — nursing-only staging may not satisfy payer requirements for CC recognition on audit.
Scenario 3 — Autonomic Dysreflexia Episode A 67-year-old male with chronic C5 complete quadriplegia presents with sudden severe hypertension (BP 220/140), diaphoresis above the injury level, and flushing. The treating neurologist documents autonomic dysreflexia triggered by a distended bladder secondary to neurogenic bladder.
- Correct coding: G90.3 (Autonomic dysreflexia — acute condition precipitating this admission) → G82.53 → N31.9 (Neurogenic bladder — triggering cause)
- Sequencing: G90.3 sequences as principal because it is the acute condition driving the admission; G82.53 is added per guideline I.C.6 as the underlying condition; N31.9 documents the precipitating cause.
- CDI note: Autonomic dysreflexia is life-threatening and almost universally undercoded — query the physician to document both the episode and the triggering stimulus (bladder, bowel, skin irritation) for complete clinical picture and quality measure reporting.
⚠️ Coding Pitfalls and Tips
- Central cord syndrome is NOT complete quadriplegia. Central cord syndrome is an incomplete injury most common at C5-C7 in older adults — never assign G82.53 when the provider documents central cord syndrome, Brown-Séquard, anterior cord, or any other named incomplete SCI syndrome at C5-C7. Query immediately if documentation is ambiguous.
- Don’t default to G82.50 (unspecified) when level is documented. If any cervical level is noted in the H&P, MRI report, or consult, query for completeness confirmation and code to G82.53 or G82.54 as appropriate. Unspecified coding fails CDI and quality standards and is indefensible under RAD-V.
- Traumatic SCI etiology code must accompany G82.53 in acute admissions. G82.53 alone in an acute trauma patient is an incomplete code set — the S14.1xx-S14.107A series code must be present per guideline I.C.19. Submitting only G82.53 without the causal injury code may misroute the DRG grouper.
- Autonomic dysreflexia (G90.3) is systematically missed in C5-C7 complete SCI. Any SCI at or above T6 — including all C5-C7 injuries — is at risk for autonomic dysreflexia. If paroxysmal hypertension, diaphoresis, or flushing is documented during an encounter, this is a mandatory CDI query for G90.3.
- Neurogenic bowel (K59.4) is routinely omitted. Every patient with complete cervical SCI has neurogenic bowel — it must be documented as an active, managed condition to be coded. Query the attending if a bowel program is in place but the diagnosis is not stated.
- Excludes 1 with G80.8 requires active etiology review. Young adult patients with spastic quadriplegia from cerebral palsy who are mislabeled on a hospital problem list as having “cervical SCI” are a real-world audit risk. Always verify the onset story before assigning G82.53; congenital spastic quadriplegia always maps to G80.8 or G80.0, never G82.53.