2026 ICD-10-CM Diagnosis Code S34.112AComplete lesion of L2 level of lumbar spinal cord, initial encounter

ICD-10-CM CodesS00–T88S30-S39S34

ICD-10-CM S34.112A
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S34.112A is a billable ICD-10-CM diagnosis code for complete lesion of L2 level of lumbar spinal cord, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 963 through 965. Coders also document this condition as complete lesion of lumbar spinal cord. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Spinal cord injury (SCI), initial encounter.

Code Identity

ICD-10-CM Code
S34.112A
Billable Status
Yes — Valid for Submission
Code Describes
Complete lesion of L2 level of lumbar spinal cord, initial encounter
Short Description
Complete lesion of L2 level of lumbar spinal cord, init
Parent Code
Complete lesion of L2 level of lumbar spinal cord

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS30-S39Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals
CategoryS34Injury of lumbar and sacral spinal cord and nerves at abdomen, lower back and pelvis level
This CodeS34.112AComplete lesion of L2 level of lumbar spinal cord, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Complete lesion of lumbar spinal cord
  • Complete lesion of lumbar spinal cord at L2 level

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Injury of lumbar and sacral spinal cord and nerves at abdomen, lower back and pelvis level (S34). Use the following options for the applicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.

Clinical ClassificationClinical

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

CCSR INJ009
Spinal cord injury (SCI), initial encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Spinal Cord Injuries

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. A spinal cord injury disrupts the signals. Spinal cord injuries usually begin with a blow that fractures (breaks) or dislocates your vertebrae, 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 S34.112A to ICD-9-CMHistory

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

ICD-9-CM
952.2 Lumbar spinal cord injur
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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About S34.112AOverview

Is S34.112A (Complete lesion of L2 level of lumbar spinal cord) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report complete lesion of L2 level of lumbar spinal cord, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character A in S34.112A mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for complete lesion of L2 level of lumbar spinal cord, such as an emergency visit or first evaluation.

What MS-DRG does S34.112A group to?

When complete lesion of L2 level of lumbar spinal cord, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 963, 964, 965, with relative weights from 0.9405 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of S34.112A?

Under the General Equivalence Mappings, complete lesion of L2 level of lumbar spinal cord, initial encounter converts to ICD-9-CM 952.2 (lumbar spinal cord injur). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.