2026 ICD-10-CM Diagnosis Code S01.531DPuncture wound without foreign body of lip, subsequent encounter

ICD-10-CM Codes›S00–T88›S00-S09›S01

ICD-10-CM S01.531D
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S01.531D is a billable ICD-10-CM diagnosis code for puncture wound without foreign body of lip, 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. Coders also document this condition as pellet wound of face. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Any dental condition including traumatic injury; and Open wounds of head and neck, subsequent encounter.

Code Identity

ICD-10-CM Code
S01.531D
Billable Status
Yes — Valid for Submission
Code Describes
Puncture wound without foreign body of lip, subsequent encounter
Short Description
Puncture wound without foreign body of lip, subs encntr
Parent Code
S01.531
Puncture wound without foreign body of lip

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS00-S09Injuries to the head
CategoryS01Open wound of head
This CodeS01.531DPuncture wound without foreign body of lip, subsequent encounter

Present on Admission (POA)Billing

S01.531D 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.

  • Pellet wound of face
  • Pellet wound of head
  • Pellet wound of lip
  • Puncture wound of lip

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 DEN001
Any dental condition including traumatic injury
Default principal diagnosis: inpatient No · outpatient No
CCSR INJ048
Open wounds of head and neck, subsequent encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Mouth Disorders

Your mouth is one of the most important parts of your body. It has many different functions. It allows you to:

Read the full article at MedlinePlus

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Convert S01.531D 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 S01.531DOverview

Is S01.531D (Puncture wound without foreign body of lip) a billable code?

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

What does the 7th character D in S01.531D mean?

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

What MS-DRG does S01.531D group to?

When puncture wound without foreign body of lip, 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 S01.531D 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 puncture wound without foreign body of lip, subsequent encounter on inpatient claims.

What is the ICD-9 equivalent of S01.531D?

Under the General Equivalence Mappings, puncture wound without foreign body of lip, 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.