2026 ICD-10-CM Diagnosis Code S34.139AUnspecified injury to sacral spinal cord, initial encounter
S34.139A is a billable ICD-10-CM diagnosis code for unspecified injury to sacral 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 injury of conus medullaris. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Spinal cord injury (SCI), initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Injury of conus medullaris
- Laceration of lower back
- Laceration of sacral cord
- Laceration of spinal cord
- Sacral spinal cord injury without bone injury
- Traumatic injury of sacral spinal cord
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.
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 S34.139A to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S34.139AOverview
Is S34.139A (Unspecified injury to sacral spinal cord) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified injury to sacral spinal cord, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in S34.139A mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for unspecified injury to sacral spinal cord, such as an emergency visit or first evaluation.
What MS-DRG does S34.139A group to?
When unspecified injury to sacral 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 S34.139A?
Under the General Equivalence Mappings, unspecified injury to sacral spinal cord, initial encounter converts to ICD-9-CM 952.3 (sacral spinal cord injur). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
