2027 ICD-10-CM Diagnosis Code S10.94XDExternal constriction of unspecified part of neck, subsequent encounter

ICD-10-CM Codes›S00–T88›S10-S19›S10

ICD-10-CM S10.94XD
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S10.94XD is a billable ICD-10-CM diagnosis code for external constriction of unspecified part of neck, 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 Superficial injury; contusion, subsequent encounter.

Code Identity

ICD-10-CM Code
S10.94XD
Billable Status
Yes — Valid for Submission
Code Describes
External constriction of unspecified part of neck, subsequent encounter
Short Description
External constriction of unsp part of neck, subs encntr
Parent Code
S10.94
External constriction of unspecified part of neck

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS10-S19Injuries to the neck
CategoryS10Superficial injury of neck
This CodeS10.94XDExternal constriction of unspecified part of neck, subsequent encounter

Present on Admission (POA)Billing

S10.94XD is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Injuries to the neck (S10-S19).

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Superficial injury of neck (S10). 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 S10.94XD: its own notes plus those printed at S10, block S10-S19, 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 S10-S19 Injuries to the neck applies to 1,074 codes
  • injuries of nape
  • injuries of supraclavicular region
  • injuries of throat

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 S10-S19 Injuries to the neck applies to 1,074 codes
  • burns and corrosions (T20-T32)
  • effects of foreign body in esophagus (T18.1)
  • effects of foreign body in larynx (T17.3)
  • effects of foreign body in pharynx (T17.2)
  • effects of foreign body in trachea (T17.4)
  • 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.-)

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 S10 Superficial injury of neck applies to 72 codes
  • The appropriate 7th character is to be added to each code from category S10
Values for category S10 Encounter: Initial, Subsequent, Sequela
  • 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 INJ054
Superficial injury; contusion, subsequent encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Neck Injuries and Disorders

Any part of your neck - muscles, bones, joints, tendons, ligaments, or nerves - can cause neck problems. Neck pain is very common. Pain may also come from your shoulder, jaw, head, or upper arms.

Read the full article at MedlinePlus

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

Convert S10.94XD 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 S10.94XDOverview

Is S10.94XD (External constriction of unspecified part of neck) a billable code?

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

What does the 7th character D in S10.94XD mean?

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

What MS-DRG does S10.94XD group to?

When external constriction of unspecified part of neck, 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 S10.94XD 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 external constriction of unspecified part of neck, subsequent encounter on inpatient claims. The code appears in the Injuries to the neck (S10-S19) range of the CMS exempt list.

What is the ICD-9 equivalent of S10.94XD?

Under the General Equivalence Mappings, external constriction of unspecified part of neck, subsequent encounter converts to ICD-9-CM V58.89 (other specfied aftercare). The mapping is approximate, so confirm the match fits the documentation.