2027 ICD-10-CM Diagnosis Code S09.8XXDOther specified injuries of head, subsequent encounter

ICD-10-CM Codes›S00–T88›S00-S09›S09

ICD-10-CM S09.8XXD
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S09.8XXD is a billable ICD-10-CM diagnosis code for other specified injuries 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 Other specified injury, subsequent encounter.

Code Identity

ICD-10-CM Code
S09.8XXD
Billable Status
Yes — Valid for Submission
Code Describes
Other specified injuries of head, subsequent encounter
Short Description
Other specified injuries of head, subsequent encounter
Same as the full description in the CMS dataset.
Parent Code
Other specified injuries of head

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS00-S09Injuries to the head
CategoryS09Other and unspecified injuries of head
This CodeS09.8XXDOther specified injuries of head, subsequent encounter

Present on Admission (POA)Billing

S09.8XXD 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 cheek
  • Avulsion of floor of mouth
  • Avulsion of neck
  • Avulsion of oropharynx
  • Avulsion of soft palate
  • Avulsion of zygomatic region of cheek
  • Degloving injury of head
  • Degloving injury of head and neck
  • Degloving injury of neck
  • Foreign body in bone
  • Foreign body in jaw bone
  • Foreign body in lip
  • Foreign body of cheek
  • Foreign body of left cheek
  • Foreign body of lower lip
  • Foreign body of musculoskeletal structure
  • Foreign body of right cheek
  • Foreign body of upper lip
  • Glass in head and/or neck
  • Headache due to external compression of head
  • Injury of meniscus of temporomandibular joint
  • Injury of salivary apparatus
  • Injury of salivary duct
  • Intracranial hemorrhage co-occurrent and due to complex wound of head
  • Metal foreign body in cheek
  • Metal foreign body in head
  • Metal foreign body in head and/or neck
  • Metal foreign body in lip
  • Peripheral nerve injury of head and neck
  • Transection of salivary duct
  • Traumatic airway disruption
  • Wood splinter in head

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Other and unspecified injuries of head (S09). 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 S09.8XXD: its own notes plus those printed at S09, 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

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 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 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 S09 Other and unspecified injuries of head applies to 69 codes
  • The appropriate 7th character is to be added to each code from category S09
  • Ainitial encounter
  • Dsubsequent encounter this code
  • Ssequela

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

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INJ063
Other specified injury, subsequent encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

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 S09.8XXD 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 S09.8XXDOverview

What is the ICD-10 code for other specified injuries of head, subsequent encounter?

The ICD-10-CM code for other specified injuries of head, subsequent encounter is S09.8XXD (sometimes written as S098XXD). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is S09.8XXD (Other specified injuries of head) a billable code?

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

What does the 7th character D in S09.8XXD mean?

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

What MS-DRG does S09.8XXD group to?

When other specified injuries 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 S09.8XXD 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 other specified injuries of head, subsequent encounter on inpatient claims. The code appears in the Injuries to the head (S00-S09) range of the CMS exempt list.