2026 ICD-10-CM Diagnosis Code S08.812APartial traumatic amputation of nose, initial encounter

ICD-10-CM Codes›S00–T88›S00-S09›S08

ICD-10-CM S08.812A
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S08.812A is a billable ICD-10-CM diagnosis code for partial traumatic amputation of nose, 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 154 through 156, 963 through 965. Coders also document this condition as traumatic amputation of nose. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Amputation of other body parts, initial encounter.

Code Identity

ICD-10-CM Code
S08.812A
Billable Status
Yes — Valid for Submission
Code Describes
Partial traumatic amputation of nose, initial encounter
Short Description
Partial traumatic amputation of nose, initial encounter
Same as the full description in the CMS dataset.
Parent Code
S08.812
Partial traumatic amputation of nose

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 CodeS08.812APartial traumatic amputation of nose, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Traumatic amputation of nose
  • Traumatic partial amputation of nose

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

Patient EducationClinical

Nose Injuries and Disorders

Your nose is important to your health. It filters the air you breathe, removing dust, germs, and irritants. It warms and moistens the air to keep your lungs and tubes that lead to them from drying out. Your nose also contains the nerve cells that help your sense of smell.

Read the full article at MedlinePlus

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

Convert S08.812A to ICD-9-CMHistory

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

ICD-9-CM
873.29 Mult open wound nose
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 S08.812AOverview

Is S08.812A (Partial traumatic amputation of nose) a billable code?

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

What does the 7th character A in S08.812A mean?

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

What MS-DRG does S08.812A group to?

When partial traumatic amputation of nose, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 154, 155, 156, 963, 964, 965, with relative weights from 0.6911 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of S08.812A?

Under the General Equivalence Mappings, partial traumatic amputation of nose, initial encounter converts to ICD-9-CM 873.29 (mult open wound nose). 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.