S09.90XD ICD-10-CM Code: Unspecified injury of head, subsequent encounter
S09.90XD is the authoritative medical code for Unspecified injury of head, subsequent encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for unspecified injury of head, subsequent encounter (ICD-10-CM S09.90XD), ensuring healthcare documentation aligns with current federal coding standards.
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 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.
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 S09.90XD in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- injuries of ear
- injuries of eye
- injuries of face [any part]
- injuries of gum
- injuries of jaw
- injuries of oral cavity
- injuries of palate
- injuries of periocular area
- injuries of scalp
- injuries of temporomandibular joint area
- injuries of tongue
- injuries of tooth
Inclusion Terms
Alternative terms the tabular list files under this code.
- Head injury NOS
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- brain injury NOS (S06.9-)
- head injury NOS with loss of consciousness (S06.9-)
- intracranial injury NOS (S06.9-)
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)
- effects of foreign body in ear (T16)
- effects of foreign body in larynx (T17.3)
- effects of foreign body in mouth NOS (T18.0)
- effects of foreign body in nose (T17.0-T17.1)
- effects of foreign body in pharynx (T17.2)
- effects of foreign body on external eye (T15.-)
- frostbite (T33-T34)
- insect bite or sting, venomous (T63.4)
Code Also
Additional codes that may be required to fully describe the encounter.
- for any associated infection
Frequently Asked Questions (FAQ) & Clinical Guidance
Does S09.90XD require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S09.
What can't be coded together with S09.90XD?
Per official ICD-10-CM Excludes1 instructions, S09.90XD must not be reported together with: brain injury NOS (S06.9-); head injury NOS with loss of consciousness (S06.9-); intracranial injury NOS (S06.9-).
Can S09.90XD be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, S09.90XD and the following are not considered part of each other and may both be reported when both conditions are present: burns and corrosions (T20-T32); effects of foreign body in ear (T16); effects of foreign body in larynx (T17.3); effects of foreign body in mouth NOS (T18.0).
What conditions are included under S09.90XD?
Unspecified injury of head, subsequent encounter includes: Head injury NOS.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S09.90XD in its code family, with their registry titles.
- S09.8XXD — Other specified injuries of head, subsequent encounter
- S09.8XXS — Other specified injuries of head, sequela
- S09.9 — Unspecified injury of face and head
- S09.90 — Unspecified injury of head
- S09.90XA — Unspecified injury of head, initial encounter
- S09.90XS — Unspecified injury of head, sequela
- S09.91 — Unspecified injury of ear
- S09.91XA — Unspecified injury of ear, initial encounter
- S09.91XD — Unspecified injury of ear, subsequent encounter
- S09.91XS — Unspecified injury of ear, sequela