2027 ICD-10-CM Diagnosis Code S01.80XDUnspecified open wound of other part of head, subsequent encounter

ICD-10-CM Codes›S00–T88›S00-S09›S01

ICD-10-CM S01.80XD
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S01.80XD is a billable ICD-10-CM diagnosis code for unspecified open wound of other part of head, 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 2027 (October 1, 2026 through September 30, 2027) 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 Any dental condition including traumatic injury; and Open wounds of head and neck, subsequent encounter.

Code Identity

ICD-10-CM Code
S01.80XD
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified open wound of other part of head, subsequent encounter
Short Description
Unspecified open wound of other part of head, subs encntr
Parent Code
S01.80
Unspecified open wound of other part of head

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS00-S09Injuries to the head
CategoryS01Open wound of head
This CodeS01.80XDUnspecified open wound of other part of head, subsequent encounter

Present on Admission (POA)Billing

S01.80XD is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Injuries to the head (S00-S09).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Avulsion of circumoral region of face
  • Avulsion of forehead
  • Foreign body of forehead
  • Fracture of alveolus, open
  • Fracture of angle of mandible
  • Fracture of bone of nasal sinus
  • Fracture of frontal bone
  • Fracture of frontal sinus
  • Fracture of mandibular alveolus
  • Fracture of temporal bone
  • Glass in face
  • Glass in forehead
  • Glass in head
  • Multiple open fractures of facial bones
  • Multiple open wounds of face
  • Multiple open wounds of head
  • Open dislocation of jaw
  • Open division, jaw ligament
  • Open fracture of alveolar border of body of mandible
  • Open fracture of alveolar ridge of left maxilla
  • Open fracture of alveolar ridge of maxilla
  • Open fracture of alveolar ridge of right maxilla
  • Open fracture of body of left half of mandible
  • Open fracture of body of mandible
  • Open fracture of body of right half of mandible
  • Open fracture of condylar process of left mandible
  • Open fracture of condylar process of right mandible
  • Open fracture of frontal sinus
  • Open fracture of left half of mandible
  • Open fracture of left mandibular alveolar border
  • Open fracture of left mandibular angle
  • Open fracture of left maxilla
  • Open fracture of mandible, angle of jaw
  • Open fracture of mandible, condylar process
  • Open fracture of maxilla
  • Open fracture of naso orbital ethmoid
  • Open fracture of occipital bone
  • Open fracture of ramus of left half of mandible
  • Open fracture of ramus of mandible
  • Open fracture of ramus of right half of mandible
  • Open fracture of right half of mandible
  • Open fracture of right mandibular alveolar border
  • Open fracture of right mandibular angle
  • Open fracture of right maxilla
  • Open fracture of temporal bone
  • Open traumatic bilateral jaw dislocation
  • Open traumatic dislocation of left temporomandibular joint
  • Open traumatic dislocation of right temporomandibular joint
  • Open wound of chin
  • Open wound of face
  • Open wound of forehead
  • Open wound of jaw
  • Open wound of left temporal region
  • Open wound of nasal sinus
  • Open wound of right temporal region
  • Open wound of temporal region
  • Traumatic cerebral edema
  • Traumatic cerebral edema with open intracranial wound
  • Traumatic dislocation of temporomandibular joint

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 2027, published by CMS and the National Center for Health Statistics.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to S01.80XD: its own notes plus those printed at S01, block S00-S09, and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block S00-S09 Injuries to the head applies to 1,934 codes
  • injuries of ear
  • injuries of eye
  • injuries of face [any part]
  • injuries of gum
  • injuries of jaw
  • injuries of oral cavity
  • injuries of palate
  • injuries of periocular area
  • injuries of scalp
  • injuries of temporomandibular joint area
  • injuries of tongue
  • injuries of tooth

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From S01 Open wound of head applies to 270 codes
  • open skull fracture (S02.- with 7th character B)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From S01 Open wound of head applies to 270 codes
  • injury of eye and orbit (S05.-)
  • traumatic amputation of part of head (S08.-)
From Block S00-S09 Injuries to the head applies to 1,934 codes
  • burns and corrosions (T20-T32)
  • effects of foreign body in ear (T16)
  • effects of foreign body in larynx (T17.3)
  • effects of foreign body in mouth NOS (T18.0)
  • effects of foreign body in nose (T17.0-T17.1)
  • effects of foreign body in pharynx (T17.2)
  • effects of foreign body on external eye (T15.-)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

From S01 Open wound of head applies to 270 codes
  • any associated:
  • injury of cranial nerve (S04.-)
  • injury of muscle and tendon of head (S09.1-)
  • intracranial injury (S06.-)
  • wound infection
From Block S00-S09 Injuries to the head applies to 1,934 codes
  • for any associated infection

Notes

General instructions on how these codes are used.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

From S01 Open wound of head applies to 270 codes
  • The appropriate 7th character is to be added to each code from category S01
Values for category S01 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter
  • Dsubsequent encounter this code
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name S01.80XD, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming S01.80XD: they are not reported together with it, unless the two conditions are unrelated.

  • S00 Superficial injury of head
    open wound of head (S01.-) names S01.-, which includes this code

Code Also 3

These codes say S01.80XD may also be needed to fully describe the condition. The note gives no sequencing direction.

  • S04 Injury of cranial nerve
    open wound of head (S01.-) names S01.-, which includes this code
  • S06 Intracranial injury
    open wound of head (S01.-) names S01.-, which includes this code
  • S09.1 Injury of muscle and tendon of head
    any associated open wound (S01.-) names S01.-, which includes this code

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

Wounds and Injuries

An injury is damage to your body. It is a general term that refers to harm caused by accidents, falls, hits, weapons, and more. In the U.S., millions of people injure themselves every year. These injuries range from minor to life-threatening.

Read the full article at MedlinePlus

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

Convert S01.80XD 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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About S01.80XDOverview

What is the ICD-10 code for unspecified open wound of other part of head, subsequent encounter?

The ICD-10-CM code for unspecified open wound of other part of head, subsequent encounter is S01.80XD (sometimes written as S0180XD). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is S01.80XD (Unspecified open wound of other part of head) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified open wound of other part of head, subsequent encounter on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What does the 7th character D in S01.80XD mean?

The final character D marks a subsequent encounter: use it for routine care while the unspecified open wound of other part of head is healing, after active treatment has ended.

What MS-DRG does S01.80XD group to?

When unspecified open wound of other part of head, subsequent encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 950, 949, with relative weights from 0.7661 to 1.1231 depending on complications. Higher weights mean higher Medicare reimbursement.

Is S01.80XD 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 unspecified open wound of other part of head, subsequent encounter on inpatient claims. The code appears in the Injuries to the head (S00-S09) range of the CMS exempt list.