2027 ICD-10-CM Diagnosis Code S11.20XDUnspecified open wound of pharynx and cervical esophagus, subsequent encounter

ICD-10-CM Codes›S00–T88›S10-S19›S11

ICD-10-CM S11.20XD
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S11.20XD is a billable ICD-10-CM diagnosis code for unspecified open wound of pharynx and cervical esophagus, 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. Coders also document this condition as open wound of pharynx. 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
S11.20XD
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified open wound of pharynx and cervical esophagus, subsequent encounter
Short Description
Unsp open wound of pharynx and cervical esophagus, subs
Parent Code
S11.20
Unspecified open wound of pharynx and cervical esophagus

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS10-S19Injuries to the neck
CategoryS11Open wound of neck
This CodeS11.20XDUnspecified open wound of pharynx and cervical esophagus, subsequent encounter

Present on Admission (POA)Billing

S11.20XD 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).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Open wound of pharynx
  • Wound of oropharynx

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Open wound of neck (S11). 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 S11.20XD: its own notes plus those printed at S11.2, S11, 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

Excludes1

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

From S11.2 Open wound of pharynx and cervical esophagus applies to 18 codes
  • open wound of esophagus NOS (S27.8-)

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 S11 Open wound of neck applies to 129 codes
  • open fracture of vertebra (S12.- with 7th character B)
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.-)

Code Also

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

From S11 Open wound of neck applies to 129 codes
  • any associated:
  • spinal cord injury (S14.0, S14.1-)
  • wound 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 S11 Open wound of neck applies to 129 codes
  • The appropriate 7th character is to be added to each code from category S11
Values for category S11 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 S11.20XD, its category, or a range that includes it.

Use Additional Code 2

These codes say to use an additional code from the note, and S11.20XD is one of the codes named.

  • S17 Crushing injury of neck
    open wound of neck (S11.-) names S11.-, which includes this code
  • T71.16 Asphyxiation due to hanging
    open wound of neck (S11.-) names S11.-, which includes this code

Code Also 4

These codes say S11.20XD may also be needed to fully describe the condition. The note gives no sequencing direction.

  • S13.1 Subluxation and dislocation of cervical vertebrae
    open wound of neck (S11.-) names S11.-, which includes this code
  • S14 Injury of nerves and spinal cord at neck level
    open wound of neck (S11.-) names S11.-, which includes this code
  • S15 Injury of blood vessels at neck level
    any associated open wound (S11.-) names S11.-, which includes this code
  • S16 Injury of muscle, fascia and tendon at neck level
    any associated open wound (S11.-) names S11.-, which includes this code

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

Esophagus Disorders

Esophagus disorders are problems with how your esophagus works. The esophagus is the tube that carries food from your mouth to your stomach. You usually don't notice it unless you swallow something too big, hot, or cold. You might also notice it if something is wrong.

The full article covers:

  • What are esophagus disorders?
  • What causes esophagus disorders?
  • What are common esophagus disorders?
  • What are symptoms of esophagus disorders?
  • How are esophagus disorders diagnosed?
  • How are esophagus disorders treated?
  • Can esophagus disorders be prevented?

Read the full article at MedlinePlus

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

Convert S11.20XD 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 S11.20XDOverview

Is S11.20XD (Unspecified open wound of pharynx and cervical esophagus) a billable code?

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

What does the 7th character D in S11.20XD mean?

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

What MS-DRG does S11.20XD group to?

When unspecified open wound of pharynx and cervical esophagus, 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 S11.20XD 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 pharynx and cervical esophagus, subsequent encounter on inpatient claims. The code appears in the Injuries to the neck (S10-S19) range of the CMS exempt list.

Can S11.20XD be reported with a code from S27.8?

Not as a rule. The Excludes1 note at S11.2, which applies to S11.20XD, lists "open wound of esophagus NOS (S27.8-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).