2027 ICD-10-CM Diagnosis Code S73.023DObturator subluxation of unspecified hip, subsequent encounter

ICD-10-CM Codes›S00–T88›S70-S79›S73

ICD-10-CM S73.023D
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S73.023D is a billable ICD-10-CM diagnosis code for obturator subluxation of unspecified hip, 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 Dislocations, subsequent encounter.

Code Identity

ICD-10-CM Code
S73.023D
Billable Status
Yes — Valid for Submission
Code Describes
Obturator subluxation of unspecified hip, subsequent encounter
Short Description
Obturator subluxation of unspecified hip, subs encntr
Parent Code
S73.023
Obturator subluxation of unspecified hip

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS70-S79Injuries to the hip and thigh
CategoryS73Dislocation and sprain of joint and ligaments of hip
This CodeS73.023DObturator subluxation of unspecified hip, subsequent encounter

Present on Admission (POA)Billing

S73.023D is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Injuries to the hip and thigh (S70-S79).

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Dislocation and sprain of joint and ligaments of hip (S73). 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 S73.023D: its own notes plus those printed at S73.0, S73, block S70-S79, 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 S73 Dislocation and sprain of joint and ligaments of hip applies to 126 codes
  • avulsion of joint or ligament of hip
  • laceration of cartilage, joint or ligament of hip
  • sprain of cartilage, joint or ligament of hip
  • traumatic hemarthrosis of joint or ligament of hip
  • traumatic rupture of joint or ligament of hip
  • traumatic subluxation of joint or ligament of hip
  • traumatic tear of joint or ligament of hip

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 S73.0 Subluxation and dislocation of hip applies to 90 codes
From S73 Dislocation and sprain of joint and ligaments of hip applies to 126 codes
  • strain of muscle, fascia and tendon of hip and thigh (S76.-)
From Block S70-S79 Injuries to the hip and thigh applies to 3,546 codes
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 S73 Dislocation and sprain of joint and ligaments of hip applies to 126 codes
  • any associated open wound

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 S73 Dislocation and sprain of joint and ligaments of hip applies to 126 codes
  • The appropriate 7th character is to be added to each code from category S73
Values for category S73 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 S73.023D, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming S73.023D: its condition is not part of those codes, and both may be reported when the patient has both.

  • S33 Dislocation and sprain of joints and ligaments of lumbar spine and pelvis
    dislocation and sprain of joints and ligaments of hip (S73.-) names S73.-, which includes this code

Clinical ClassificationClinical

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

CCSR INJ044
Dislocations, subsequent encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Dislocations

Dislocations are joint injuries that force the ends of your bones out of position. The cause is often a fall or a blow, sometimes from playing a contact sport. You can dislocate your ankles, knees, shoulders, hips, elbows and jaw. You can also dislocate your finger and toe joints.

Read the full article at MedlinePlus

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

Convert S73.023D 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 S73.023DOverview

What is the ICD-10 code for obturator subluxation of unspecified hip, subsequent encounter?

The ICD-10-CM code for obturator subluxation of unspecified hip, subsequent encounter is S73.023D (sometimes written as S73023D). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is S73.023D (Obturator subluxation of unspecified hip) a billable code?

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

What does the 7th character D in S73.023D mean?

The final character D marks a subsequent encounter: use it for routine care while the obturator subluxation of unspecified hip is healing, after active treatment has ended.

What MS-DRG does S73.023D group to?

When obturator subluxation of unspecified hip, 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 S73.023D 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 obturator subluxation of unspecified hip, subsequent encounter on inpatient claims. The code appears in the Injuries to the hip and thigh (S70-S79) range of the CMS exempt list.