2026 ICD-10-CM Diagnosis Code S01.21XDLaceration without foreign body of nose, subsequent encounter

ICD-10-CM Codes›S00–T88›S00-S09›S01

ICD-10-CM S01.21XD
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S01.21XD is a billable ICD-10-CM diagnosis code for laceration without foreign body of nose, subsequent encounter. The 7th character D marks it as a subsequent encounter code, used during routine care in the healing or recovery phase. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 949 through 950. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Open wounds of head and neck, subsequent encounter.

Code Identity

ICD-10-CM Code
S01.21XD
Billable Status
Yes — Valid for Submission
Code Describes
Laceration without foreign body of nose, subsequent encounter
Short Description
Laceration without foreign body of nose, subs encntr
Parent Code
S01.21
Laceration without foreign body of nose

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS00-S09Injuries to the head
CategoryS01Open wound of head
This CodeS01.21XDLaceration without foreign body of nose, subsequent encounter

Present on Admission (POA)Billing

S01.21XD is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Complex laceration of nose
  • Contaminated complex laceration of nose
  • Cut of nose
  • Injury of nasal cavity
  • Laceration of nasal septum
  • Laceration of nasal sinus
  • Laceration of nose
  • Laceration of structure of nasal cavity
  • Open wound of nasal septum
  • Simple laceration of nose
  • Stab wound of face
  • Stab wound of head
  • Stab wound of nose

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Open wound of head (S01). 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 INJ048
Open wounds of head and neck, subsequent 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 S01.21XD to ICD-9-CMHistory

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

ICD-9-CM
V58.89 Other specfied aftercare
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 S01.21XDOverview

Is S01.21XD (Laceration without foreign body of nose) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report laceration without foreign body of nose, subsequent encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character D in S01.21XD mean?

The final character D marks a subsequent encounter: use it for routine care while the laceration without foreign body of nose is healing, after active treatment has ended.

What MS-DRG does S01.21XD group to?

When laceration without foreign body of nose, subsequent encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 949, 950, with relative weights from 0.6277 to 1.1897 depending on complications. Higher weights mean higher Medicare reimbursement.

Is S01.21XD exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for laceration without foreign body of nose, subsequent encounter on inpatient claims.

What is the ICD-9 equivalent of S01.21XD?

Under the General Equivalence Mappings, laceration without foreign body of nose, subsequent encounter converts to ICD-9-CM V58.89 (other specfied aftercare). 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.