2027 ICD-10-CM Diagnosis Code G95.11Acute infarction of spinal cord (embolic) (nonembolic)

ICD-10-CM Codes›G00–G99›G89-G99›G95

ICD-10-CM G95.11
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

G95.11 is a billable ICD-10-CM diagnosis code for acute infarction of spinal cord (embolic) (nonembolic). It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 91 through 93. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. It does not count, however, when the principal diagnosis is one of 158 closely related codes. Coders also document this condition as acute arterial infarction of spinal cord. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other nervous system disorders (neither hereditary nor degenerative).

For Medicare Advantage risk adjustment, G95.11 maps to CMS-HCC Category 182 (Spinal Cord Disorders/Injuries) under the V28 model, adding a risk factor of about 0.478 for a community, non-dual, aged beneficiary in payment year 2027.

Code Identity

ICD-10-CM Code
G95.11
Billable Status
Yes — Valid for Submission
Code Describes
Acute infarction of spinal cord (embolic) (nonembolic)
Short Description
Acute infarction of spinal cord (embolic) (nonembolic)
Same as the full description in the CMS dataset.
Parent Code
G95.1
Vascular myelopathies

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG89-G99Other disorders of the nervous system
CategoryG95Other and unspecified diseases of spinal cord
This CodeG95.11Acute infarction of spinal cord (embolic) (nonembolic)

Medicare Risk Adjustment (HCC)Billing

G95.11 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2027.

CMS-HCC V28 Category (Payment Model)
HCC 182— Spinal Cord Disorders/Injuries
Payment HCC · PY 2027 one of 251 ICD-10-CM codes in this category
Risk Adjustment Factor (RAF) Weight
+0.478
community, non-dual, aged · ranges 0.270–0.478 across segments
Hierarchy
Superseded by HCC 180, HCC 181, HCC 191, and HCC 192
a more severe related category takes the payment when both are reported
Prior Model (CMS-HCC V24)
HCC 72
V24 retired V28 pays 100% of MA risk scores since PY 2026
Other CMS Models
PACE (CMS-HCC V22): HCC 72 · ESRD (V21): HCC 72 · ESRD (V24): HCC 72
ESRD V21 weights: 0.102 dialysis, 0.256–0.456 functioning graft · ESRD V24 weights: 0.099 dialysis, 0.222–0.523 functioning graft
Part D (RxHCC)
RxHCC 155 — Spinal Cord Disorders
also risk-adjusts in the Part D prescription drug model (V08)

Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute arterial infarction of spinal cord
  • Acute infarction of spinal cord
  • Acute venous infarction of spinal cord
  • Anterior spinal artery thrombosis
  • Arterial thrombosis of spinal cord
  • Infarction of spinal cord
  • Ischemic disorder of spinal cord
  • Myelopathy due to arterial thrombosis of spinal cord
  • Spinal cord stroke
  • Venous infarction of spinal cord

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G95.11: its own notes plus those printed at G95.1, G95, and Chapter 6. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Anoxia of spinal cord
  • Arterial thrombosis of spinal cord

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From G95.1 Vascular myelopathies applies to 2 codes
  • intraspinal phlebitis and thrombophlebitis, except non-pyogenic (G08)
From G95 Other and unspecified diseases of spinal cord applies to 8 codes
From Chapter 6 (G00-G99) Diseases of the nervous system applies to 700 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name G95.11, its category, or a range that includes it.

Excludes2 2

These codes carry an Excludes2 note naming G95.11: its condition is not part of those codes, and both may be reported when the patient has both.

  • G08 Intracranial and intraspinal phlebitis and thrombophlebitis
    intracranial phlebitis and thrombophlebitis complicating nonpyogenic intraspinal phlebitis and thrombophlebitis (G95.1) names G95.1, which includes this code
  • I82 Other venous embolism and thrombosis
    intraspinal, nonpyogenic (G95.1) names G95.1, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS020
Other nervous system disorders (neither hereditary nor degenerative)
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Spinal Cord Diseases

Your spinal cord is a bundle of nerves that runs down the middle of your back. It carries signals back and forth between your body and your brain. It is protected by your vertebrae, which are the bone disks that make up your spine.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert G95.11 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
336.1 Vascular myelopathies
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About G95.11Overview

What is the ICD-10 code for acute infarction of spinal cord (embolic) (nonembolic)?

The ICD-10-CM code for acute infarction of spinal cord (embolic) (nonembolic) is G95.11 (sometimes written as G9511). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is G95.11 (Vascular myelopathies) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report acute infarction of spinal cord (embolic) (nonembolic) on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does G95.11 group to?

When acute infarction of spinal cord (embolic) (nonembolic) is the principal diagnosis on an inpatient stay, it groups to MS-DRG 91, 92, 93, with relative weights from 0.7783 to 1.7050 depending on complications. Higher weights mean higher Medicare reimbursement.

Is G95.11 a CC or MCC?

CMS lists G95.11 as an MCC (major complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family. It does not count when the principal diagnosis is one of the 158 closely related codes in its exclusion list.

What is the ICD-9 equivalent of G95.11?

Under the General Equivalence Mappings, acute infarction of spinal cord (embolic) (nonembolic) converts to ICD-9-CM 336.1 (vascular myelopathies). The mapping is approximate, so confirm the match fits the documentation.

What HCC is G95.11?

G95.11 (acute infarction of spinal cord (embolic) (nonembolic)) maps to CMS-HCC Category 182 (Spinal Cord Disorders/Injuries), commonly written as HCC 182, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2027. It mapped to HCC 72 under the retired V24 model. It also maps in the PACE (CMS-HCC V22), ESRD (V21), and ESRD (V24) models. In the Part D prescription drug model it maps to RxHCC 155.

Does G95.11 risk-adjust for Medicare Advantage payment?

Yes. When documented and reported on a Medicare Advantage encounter, G95.11 adds a risk adjustment factor of about 0.478 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.270 to 0.478 depending on the payment segment). A more severe related category (HCC 180, HCC 181, HCC 191, and HCC 192) supersedes it when both are reported. See the full factor table on the HCC 182 category page.