2026 ICD-10-CM Diagnosis Code S08.89XATraumatic amputation of other parts of head, initial encounter

ICD-10-CM Codes›S00–T88›S00-S09›S08

ICD-10-CM S08.89XA
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S08.89XA is a billable ICD-10-CM diagnosis code for traumatic amputation of other parts of head, 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 604 through 605, 963 through 965. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Amputation of other body parts, initial encounter.

Code Identity

ICD-10-CM Code
S08.89XA
Billable Status
Yes — Valid for Submission
Code Describes
Traumatic amputation of other parts of head, initial encounter
Short Description
Traumatic amputation of other parts of head, init encntr
Parent Code
S08.89
Traumatic amputation of other parts of head

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS00-S09Injuries to the head
CategoryS08Avulsion and traumatic amputation of part of head
This CodeS08.89XATraumatic amputation of other parts of head, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Avulsion of buccal mucosa
  • Avulsion of cheek
  • Avulsion of chin
  • Avulsion of mandible
  • Avulsion of oropharynx
  • Avulsion of preauricular region of face
  • Avulsion of tonsil
  • Decapitation
  • Traumatic airway disruption
  • Traumatic amputation of lip
  • Traumatic amputation of part of head

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Avulsion and traumatic amputation of part of head (S08). 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 INJ015
Amputation of other body parts, initial encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Decapitation

    traumatic or experimentally induced separation of the head from the body in an animal or human.

Patient EducationClinical

Head Injuries

Chances are you've bumped your head before. Often, the injury is minor because your skull is hard and it protects your brain. But other head injuries can be more severe, such as a skull fracture, concussion, or traumatic brain injury.

Read the full article at MedlinePlus

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

Convert S08.89XA to ICD-9-CMHistory

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

ICD-9-CM
873.8 Open wound of head NEC
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 S08.89XAOverview

Is S08.89XA (Traumatic amputation of other parts of head) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report traumatic amputation of other parts of head, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character A in S08.89XA mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for traumatic amputation of other parts of head, such as an emergency visit or first evaluation.

What MS-DRG does S08.89XA group to?

When traumatic amputation of other parts of head, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 604, 605, 963, 964, 965, with relative weights from 0.9160 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of S08.89XA?

Under the General Equivalence Mappings, traumatic amputation of other parts of head, initial encounter converts to ICD-9-CM 873.8 (open wound of head NEC). 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.