S27.9XXS ICD-10-CM Code: Injury of unspecified intrathoracic organ, sequela
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 (FY2026), Appendix B.
- MS-DRG 205 — OTHER RESPIRATORY SYSTEM DIAGNOSES WITH MCC (MDC 04)
- MS-DRG 206 — OTHER RESPIRATORY SYSTEM DIAGNOSES WITHOUT MCC (MDC 04)
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.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S27.9XXS 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.
- injury of cervical esophagus (S10-S19)
- injury of trachea (cervical) (S10-S19)
- burns and corrosions (T20-T32)
- effects of foreign body in bronchus (T17.5)
- effects of foreign body in esophagus (T18.1)
- effects of foreign body in lung (T17.8)
- effects of foreign body in trachea (T17.4)
- frostbite (T33-T34)
- injuries of axilla
- injuries of clavicle
- injuries of scapular region
- injuries of shoulder
- insect bite or sting, venomous (T63.4)
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated open wound of thorax (S21.-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Does S27.9XXS require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S27.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S27.9XXS in its code family, with their registry titles.
- S27.898 — Other injury of other specified intrathoracic organs
- S27.898A — Other injury of other specified intrathoracic organs, initial encounter
- S27.898D — Other injury of other specified intrathoracic organs, subsequent encounter
- S27.898S — Other injury of other specified intrathoracic organs, sequela
- S27.899 — Unspecified injury of other specified intrathoracic organs
- S27.899A — Unspecified injury of other specified intrathoracic organs, initial encounter
- S27.899D — Unspecified injury of other specified intrathoracic organs, subsequent encounter
- S27.899S — Unspecified injury of other specified intrathoracic organs, sequela
- S27.9 — Injury of unspecified intrathoracic organ
- S27.9XXA — Injury of unspecified intrathoracic organ, initial encounter