S29.9XXD ICD-10-CM Code: Unspecified injury 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.
- MS-DRG 949 — AFTERCARE WITH CC/MCC (MDC 23)
- MS-DRG 950 — AFTERCARE WITHOUT CC/MCC (MDC 23)
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
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S29.9XXD in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- 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.
- burns and corrosions (T20-T32) Compare S29.9XXD vs T20 →
- effects of foreign body in bronchus (T17.5) Compare S29.9XXD vs T17.5 →
- effects of foreign body in esophagus (T18.1) Compare S29.9XXD vs T18.1 →
- effects of foreign body in lung (T17.8) Compare S29.9XXD vs T17.8 →
- effects of foreign body in trachea (T17.4) Compare S29.9XXD vs T17.4 →
- frostbite (T33-T34) Compare S29.9XXD vs T33 →
- injuries of axilla
- injuries of clavicle
- injuries of scapular region
- injuries of shoulder
- insect bite or sting, venomous (T63.4) Compare S29.9XXD vs T63.4 →
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated open wound (S21.-)
Change history
No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.
Verify Before Coding
- Billable — reportable as written.
From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.
Contextual Map
Every relationship of S29.9XXD 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)
- INJ064 — Other unspecified injuries, 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)”
Nearest codes (40)
- S29 — Other and unspecified injuries of thorax [Sibling]
- S29.012A — Strain of muscle and tendon of back wall of thorax, initial encounter [Sibling]
- S29.012D — Strain of muscle and tendon of back wall of thorax, subsequent encounter [Sibling]
- S29.012S — Strain of muscle and tendon of back wall of thorax, sequela [Sibling]
- S29.019 — Strain of muscle and tendon of unspecified wall of thorax [Sibling]
- S29.019A — Strain of muscle and tendon of unspecified wall of thorax, initial encounter [Sibling]
- S29.019D — Strain of muscle and tendon of unspecified wall of thorax, subsequent encounter [Sibling]
- S29.019S — Strain of muscle and tendon of unspecified wall of thorax, sequela [Sibling]
- and 32 more
Relationships & Classification
Clinical classification (AHRQ CCSR):INJ064 — Other unspecified injuries, 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.
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.
Frequently Asked Questions (FAQ) & Clinical Guidance
Does S29.9XXD require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S29.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S29.9XXD in its code family, with their registry titles.
- S29.099 — Other injury of muscle and tendon of unspecified wall of thorax
- S29.099A — Other injury of muscle and tendon of unspecified wall of thorax, initial encounter
- S29.099D — Other injury of muscle and tendon of unspecified wall of thorax, subsequent encounter
- S29.099S — Other injury of muscle and tendon of unspecified wall of thorax, sequela
- S29.8 — Other specified injuries of thorax
- S29.8XXA — Other specified injuries of thorax, initial encounter
- S29.8XXD — Other specified injuries of thorax, subsequent encounter
- S29.8XXS — Other specified injuries of thorax, sequela
- S29.9 — Unspecified injury of thorax
- S29.9XXA — Unspecified injury of thorax, initial encounter