T16.1XXS ICD-10-CM Code: Foreign body in right ear, 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, Appendix B.
- MS-DRG 913 — TRAUMATIC INJURY WITH MCC (MDC 21)
- MS-DRG 914 — TRAUMATIC INJURY WITHOUT MCC (MDC 21)
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 T16.1XXS in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- foreign body in auditory canal
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- foreign body accidentally left in operation wound (T81.5-) Compare T16.1XXS vs T81.5 →
- foreign body in penetrating wound - See open wound by body region
- residual foreign body in soft tissue (M79.5) Compare T16.1XXS vs M79.5 →
- splinter, without open wound - See superficial injury by body region
Use Additional Code
Supplementary codes the tabular list directs you to add.
- Use additional code, if known, for foreign body entering into or through a natural orifice (W44.-)
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 T16.1XXS 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]
- T15-T19 — Effects of foreign body entering through natural orifice [Hierarchy]
Clinical classification (CCSR)
- INJ073 — Injury, sequela [CCSR]
Potential MS-DRG
- DRG 913 — TRAUMATIC INJURY WITH MCC [MS-DRG]: “TRAUMATIC INJURY WITH MCC (MDC 21)”
- DRG 914 — TRAUMATIC INJURY WITHOUT MCC [MS-DRG]: “TRAUMATIC INJURY WITHOUT MCC (MDC 21)”
MDC crossing · procedures (32029)
- MDC 21 — Injuries, Poisonings and Toxic Effects of Drugs [MDC crossing]: “Injuries, Poisonings and Toxic Effects of Drugs — 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.”
- 0016070 — Bypass Cerebral Ventricle to Nasopharynx with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Nasopharynx with Autologous Tissue Substitute, Open Approach — grouped in MDC 21, the procedure side of this code's crossing.”
- 0016071 — Bypass Cerebral Ventricle to Mastoid Sinus with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Mastoid Sinus with Autologous Tissue Substitute, Open Approach — grouped in MDC 21, the procedure side of this code's crossing.”
- 0016072 — Bypass Cerebral Ventricle to Atrium with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Atrium with Autologous Tissue Substitute, Open Approach — grouped in MDC 21, the procedure side of this code's crossing.”
- 0016073 — Bypass Cerebral Ventricle to Blood Vessel with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Blood Vessel with Autologous Tissue Substitute, Open Approach — grouped in MDC 21, the procedure side of this code's crossing.”
- 0016074 — Bypass Cerebral Ventricle to Pleural Cavity with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Pleural Cavity with Autologous Tissue Substitute, Open Approach — grouped in MDC 21, the procedure side of this code's crossing.”
- and 32024 more
Nearest codes (12)
- T16 — Foreign body in ear [Sibling]
- T16.1 — Foreign body in right ear [Sibling]
- T16.1XXA — Foreign body in right ear, initial encounter [Sibling]
- T16.1XXD — Foreign body in right ear, subsequent encounter [Sibling]
- T16.2 — Foreign body in left ear [Sibling]
- T16.2XXA — Foreign body in left ear, initial encounter [Sibling]
- T16.2XXD — Foreign body in left ear, subsequent encounter [Sibling]
- T16.2XXS — Foreign body in left ear, sequela [Sibling]
- and 4 more
Relationships & Classification
Clinical classification (AHRQ CCSR):INJ073 — Injury, sequela (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 913 (MDC 21), DRG 914 (MDC 21).
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 T16.1XXS require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category T16.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to T16.1XXS in its code family, with their registry titles.
- T16 — Foreign body in ear
- T16.1 — Foreign body in right ear
- T16.1XXA — Foreign body in right ear, initial encounter
- T16.1XXD — Foreign body in right ear, subsequent encounter
- T16.2 — Foreign body in left ear
- T16.2XXA — Foreign body in left ear, initial encounter
- T16.2XXD — Foreign body in left ear, subsequent encounter
- T16.2XXS — Foreign body in left ear, sequela
- T16.9 — Foreign body in ear, unspecified ear
- T16.9XXA — Foreign body in ear, unspecified ear, initial encounter