Crystal's Coder Hub🧬 ICD-10-CM G95.19 — Other Vascular Myelopathies
Billable Code Confirmed
ICD-10-CM G95.19 is a valid, billable 5-character diagnosis code. The first three characters (G95) specify other and unspecified diseases of the spinal cord, the 4th character (1) specifies vascular myelopathies, and the 5th character (9) specifies “other” vascular myelopathies. No additional characters are required.
Non-Billable Parent Codes — Never Submit These
- ❌
G95— 3-character header — Lacks specificity regarding the exact spinal cord disease.- ❌
G95.1— 4-character header — Lacks specificity regarding whether the vascular myelopathy is an acute infarction or another vascular etiology.Always submit G95.19 (all 5 characters) when edema of the spinal cord, nonpyogenic intraspinal phlebitis, or subacute necrotic myelopathy is documented.
Clinical Context: Distinguishing from Acute Infarction
ICD-10-CM G95.19 is used for vascular disorders of the spinal cord other than acute infarctions (strokes) of the spinal cord. If the patient has suffered a sudden, acute spinal cord infarction (anterior spinal artery syndrome), use code G95.11 instead.
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 G95.19 classifies Other vascular myelopathies. This category includes several distinct, non-infarction vascular pathologies affecting the spinal cord:
- Subacute Necrotic Myelopathy (Foix-Alajouanine Syndrome): A rare disorder characterized by venous congestion and subsequent necrosis of the spinal cord. It is typically caused by thrombosis within a spinal dural arteriovenous fistula (dAVF) or vascular malformation. Patients experience a progressive, ascending, subacute paraparesis or paraplegia, sensory loss, and sphincter dysfunction.
- Edema of Spinal Cord: Swelling of the spinal cord tissue often secondary to venous congestion, vascular malformations, or mild ischemic insults that do not progress to full infarction.
- Nonpyogenic Intraspinal Phlebitis / Thrombophlebitis: Inflammation and thrombosis of the spinal veins without a bacterial/infectious cause, leading to impaired venous drainage and spinal cord injury.
Clinically, these conditions present with progressive weakness (typically lower extremities), sensory deficits, and bowel/bladder dysfunction. MRI often shows T2 hyperintensity spanning multiple segments (edema) and prominently enlarged flow voids (dilated perimedullary veins).
🌳 Code Tree / Hierarchy
G95 Other and unspecified diseases of spinal cord ❌ Non-billable
│
├── G95.0 Syringomyelia and syringobulbia ✅ Billable
├── G95.1 Vascular myelopathies ❌ Non-billable
│ ├── G95.11 Acute infarction of spinal cord (embolic) (nonembolic) ✅ Billable
│ └── G95.19 Other vascular myelopathies ◀ THIS CODE ✅ Billable
│
├── G95.2- Cord compression, unspecified
├── G95.8- Other specified diseases of spinal cord
└── G95.9 Disease of spinal cord, unspecified ✅ Billable
✅ Includes
The following clinical terms and diagnoses map directly to G95.19 when documented in the medical record:
- Edema of spinal cord
- Subacute necrotic myelopathy
- Foix-Alajouanine syndrome
- Nonpyogenic intraspinal phlebitis
- Nonpyogenic intraspinal thrombophlebitis
- Venous congestive myelopathy
❌ Excludes
Excludes 1 — Cannot Be Coded Simultaneously with CODE
| Code | Description | Note |
|---|---|---|
| G95.11 | Acute infarction of spinal cord | Mutually exclusive. If the condition is documented as an acute spinal cord stroke/infarction, use G95.11 instead of G95.19. |
Excludes 2 — May Be Coded in Addition if Separately Present
| Code | Description | Note |
|---|---|---|
| Q28.2 | Arteriovenous malformation of cerebral vessels | While congenital AVMs of the spinal cord map here, if the AVM causes a secondary congestive myelopathy (edema), both the malformation and the resulting myelopathy (G95.19) can be coded to reflect the full clinical picture. |
| S14.- / S24.- / S34.- | Traumatic spinal cord injury | If spinal cord edema is explicitly the result of acute physical trauma, the traumatic injury code is sequenced first. |
📋 Clinical Overview
Associated Manifestations (Code Also)
Vascular myelopathies rarely exist without severe functional deficits. Coders should review the documentation and capture the resulting impairments to accurately reflect patient complexity:
- G82.20 — Paraplegia, unspecified
- G82.50 — Quadriplegia, unspecified
- N31.9 — Neuromuscular dysfunction of bladder, unspecified (Neurogenic bladder)
- R32 — Unspecified urinary incontinence
- K59.2 — Neurogenic bowel, not elsewhere classified
Sequencing Primary Deficits
If a patient is admitted primarily for rehabilitation of paraplegia caused by Foix-Alajouanine syndrome, the specific manifestation (e.g., paraplegia) may be sequenced according to specific payer or facility rehabilitation coding guidelines, but G95.19 must be captured as the underlying etiology.
💰 HCC Risk Adjustment (CMS-HCC v28)
| Field | Detail |
|---|---|
| CMS-HCC Model Version | v28 (2024-2025 Implementation) |
| HCC Assignment | ✅ Mapped — HCC 72 |
| HCC Category | Spinal Cord Disorders |
G95.19 establishes a severe neurological and spinal cord disorder. Due to its potential for causing chronic disability, providers must evaluate and document the condition (MEAT criteria: Monitor, Evaluate, Assess, Treat) during an active encounter at least once per calendar year to maintain accurate risk adjustment for Medicare Advantage beneficiaries.
🏥 DRG Assignment
MDC 01 — Diseases and Disorders of the Nervous System
| DRG | Title | Est. Relative Weight* |
|---|---|---|
| DRG 091 | Other Disorders of Nervous System with MCC | ~1.95 |
| DRG 092 | Other Disorders of Nervous System with CC | ~1.10 |
| DRG 093 | Other Disorders of Nervous System without CC/MCC | ~0.80 |
Approximate. Verify against IPPS FY2026 Final Rule tables.
🛠️ Commonly Associated CPT Codes (Neurology / Neurosurgery / Inpatient)
| CPT Code | Description | Modifier Notes / wRVU |
|---|---|---|
| 99223 | Initial hospital inpatient or observation care, per day (High MDM) | Frequently used for the high-complexity admission and diagnostic workup of progressive myelopathy. (wRVU: 3.86) |
| 72146 | Magnetic resonance (e.g., proton) imaging, spinal canal and contents, thoracic; without contrast material | Often the initial imaging modality to visualize edema and exclude compressive lesions. Billed with Modifier -26 for professional interpretation. |
| 72158 | Magnetic resonance (e.g., proton) imaging, spinal canal and contents, without contrast material, followed by contrast material(s) and further sequences; lumbar | Contrast imaging is critical for identifying vascular flow voids associated with venous congestive myelopathies. |
| 62270 | Spinal puncture, lumbar, diagnostic | Used to evaluate CSF (often showing elevated protein without pleocytosis in venous congestion). (wRVU: 2.14) |
| 61624 | Endovascular temporary or permanent occlusion or embolization, central nervous system (intracranial, spinal cord) | Surgical treatment if the myelopathy is driven by a dural AV fistula. (wRVU: ~21.50) |
💊 Coding Scenarios and Examples
Scenario 1 — Inpatient Admission for Subacute Paraparesis
Clinical Vignette: A 62-year-old male presents with a 4-week history of progressive bilateral leg weakness and new-onset urinary retention. MRI of the thoracic spine shows prominent T2 hyperintensity extending from T6 to T10, along with prominent perimedullary flow voids. A spinal angiogram confirms a Type I dural arteriovenous fistula (dAVF) causing severe venous congestive myelopathy. The neurosurgeon performs endovascular embolization of the fistula.
Principal Diagnosis:
- G95.19 — Other vascular myelopathies (Reason for admission/myelopathy)
Secondary Diagnoses:
Q28.2— Arteriovenous malformation of cerebral vessels (Note: Congenital spinal AVMs map here; if acquired, I77.0 Arteriovenous fistula, acquired may be used depending on precise documentation).- G82.20 — Paraplegia, unspecified (Manifestation)
- R33.9 — Retention of urine, unspecified (Manifestation)
Procedures:
- 61624 — Endovascular embolization, spinal cord
- 99223 — E/M Initial hospital care, High MDM
Scenario 2 — Outpatient Follow-Up
Clinical Vignette: A patient is seen in the PM&R clinic 1 year after an admission for subacute necrotic myelopathy (Foix-Alajouanine syndrome). The patient has permanent, incomplete paraplegia and uses a manual wheelchair. The physician evaluates the patient’s home exercise program, refills baclofen for lower extremity spasticity, and manages their neurogenic bladder protocol. Moderate MDM.
Corrected ICD-10-CM Coding:
- G95.19 — Other vascular myelopathies (Definitive underlying etiology)
- G82.22 — Paraplegia, incomplete (Specific functional deficit)
- N31.9 — Neuromuscular dysfunction of bladder, unspecified
Z99.3— Dependence on wheelchair
⚠️ Coding Pitfalls and Tips
| Pitfall or Tip | |
|---|---|
| ❌ | Confusing with Acute Infarction. Do not use G95.19 if the physician documents “anterior spinal artery syndrome” or “acute spinal cord infarction.” Acute strokes of the spinal cord map to G95.11 (Acute infarction of spinal cord). |
| ❌ | Ignoring Manifestations. Failing to code secondary complications like paraplegia or neurogenic bladder leaves the clinical picture incomplete. Capturing these functional deficits (e.g., G82.20) accurately reflects the patient’s care requirements and often acts as a CC or MCC for inpatient grouping. |
| ✅ | Look for Eponyms. If a provider documents “Foix-Alajouanine syndrome,” know that this maps directly to G95.19. Confirm with the provider if the documentation only notes “vascular myelopathy.” |
| ✅ | Code the Underlying Malformation. If the spinal cord edema/congestion is caused by a documented dural AV fistula or hemangioma, ensure you code the vascular anomaly in addition to the myelopathy to fully capture the etiology.^5 |
| ✅ | Capture Annually for Risk Adjustment. For patients who have permanent, residual paraparesis requiring ongoing medical management following a vascular myelopathy event, code G95.19 and the manifestations annually to support the CMS-HCC model.^4 |
📚 Sources
- CMS/NCHS. ICD-10-CM Official Guidelines for Coding and Reporting, FY2026.
- Krishnan, P., et al. (2013). Venous congestive myelopathy: A review. Annals of Indian Academy of Neurology, 16(3), 325-331. (Source for pathophysiology and clinical presentation of venous congestive myelopathy and Foix-Alajouanine syndrome).
- Muralidharan, R., et al. (2014). Spinal cord infarction and other vascular myelopathies. Neurologic Clinics, 32(1), 257-276.
- CMS. 2025-2026 Medicare Advantage Risk Adjustment — CMS-HCC Model v28 ICD-10-CM Mappings.
- American Medical Association (AMA). CPT Professional Edition 2026. Evaluation and Management / Surgery Guidelines.