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S23.29XD ICD-10-CM Code: Dislocation of other parts of thorax, subsequent encounter

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Official Registry Overview & Definition

Dislocation of other parts of thorax, subsequent encounter is a billable ICD-10-CM diagnosis code (S23.29D).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S23.29XD in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • avulsion of joint or ligament of thorax
  • laceration of cartilage, joint or ligament of thorax
  • sprain of cartilage, joint or ligament of thorax
  • traumatic hemarthrosis of joint or ligament of thorax
  • traumatic rupture of joint or ligament of thorax
  • traumatic subluxation of joint or ligament of thorax
  • traumatic tear of joint or ligament of thorax
  • injuries of breast
  • injuries of chest (wall)
  • injuries of interscapular area

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Code Also

Additional codes that may be required to fully describe the encounter.

  • any associated open wound

Frequently Compared Codes

The official Excludes notes on S23.29XD name these codes. Each comparison page covers when the two can — or must not — be reported together.

Change history

No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Relationships & Classification

Potential MS-DRG Relationships (FY2026)

Not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity.

Named in the grouper logic of 2 MS-DRGs: DRG 949 (MDC 23), DRG 950 (MDC 23).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):INJ044 — Dislocations, subsequent encounter (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same injury, other encounter phase

Same injury, coded at a different phase of treatment via the 7th character.

S23.29XA — Dislocation of other parts of thorax, initial encounter Compare S23.29XD vs S23.29XA →, S23.29XS — Dislocation of other parts of thorax, sequela

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Dislocations, subsequent encounter).

+537 more

Contextual Map

Every relationship of S23.29XD in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • S00-T88 — Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) (S00-T88) [Hierarchy]
  • S20-S29 — Injuries to the thorax [Hierarchy]

Clinical classification (CCSR)

  • INJ044 — Dislocations, subsequent encounter [CCSR]

Potential MS-DRG

  • DRG 949 — AFTERCARE WITH CC/MCC [MS-DRG]: “AFTERCARE WITH CC/MCC (MDC 23)”
  • DRG 950 — AFTERCARE WITHOUT CC/MCC [MS-DRG]: “AFTERCARE WITHOUT CC/MCC (MDC 23)”

MDC crossing · procedures (1235)

  • MDC 23 — Factors Influencing Health Status and Other Contacts with Health Services [MDC crossing]: “Factors Influencing Health Status and Other Contacts with Health Services — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
  • F003GKZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GMZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GPZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GYZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GZZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • and 1230 more

Nearest codes (40)

  • S23 — Dislocation and sprain of joints and ligaments of thorax [Sibling]
  • S23.163 — Dislocation of T11/T12 thoracic vertebra [Sibling]
  • S23.163A — Dislocation of T11/T12 thoracic vertebra, initial encounter [Sibling]
  • S23.163D — Dislocation of T11/T12 thoracic vertebra, subsequent encounter [Sibling]
  • S23.163S — Dislocation of T11/T12 thoracic vertebra, sequela [Sibling]
  • S23.17 — Subluxation and dislocation of T12/L1 thoracic vertebra [Sibling]
  • S23.170 — Subluxation of T12/L1 thoracic vertebra [Sibling]
  • S23.170A — Subluxation of T12/L1 thoracic vertebra, initial encounter [Sibling]
  • and 32 more

Frequently Asked Questions (FAQ) & Clinical Guidance

Does S23.29XD require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S23.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S23.29XD in its code family, with their registry titles.

  • S23.20XA — Dislocation of unspecified part of thorax, initial encounter
  • S23.20XD — Dislocation of unspecified part of thorax, subsequent encounter
  • S23.20XS — Dislocation of unspecified part of thorax, sequela
  • S23.29 — Dislocation of other parts of thorax
  • S23.29XA — Dislocation of other parts of thorax, initial encounter
  • S23.29XS — Dislocation of other parts of thorax, sequela
  • S23.3 — Sprain of ligaments of thoracic spine
  • S23.3XXA — Sprain of ligaments of thoracic spine, initial encounter
  • S23.3XXD — Sprain of ligaments of thoracic spine, subsequent encounter
  • S23.3XXS — Sprain of ligaments of thoracic spine, sequela

View all codes in the S23 family