S54.12XD ICD-10-CM Code: Injury of median nerve at forearm level, left arm, 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 (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 S54.12XD in the official ICD-10-CM tabular list.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- injury of nerves at wrist and hand level (S64.-)
- burns and corrosions (T20-T32)
- frostbite (T33-T34)
- injuries of wrist and hand (S60-S69)
- insect bite or sting, venomous (T63.4)
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated open wound (S51.-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Does S54.12XD require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S54.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S54.12XD in its code family, with their registry titles.
- S54.11XA — Injury of median nerve at forearm level, right arm, initial encounter
- S54.11XD — Injury of median nerve at forearm level, right arm, subsequent encounter
- S54.11XS — Injury of median nerve at forearm level, right arm, sequela
- S54.12 — Injury of median nerve at forearm level, left arm
- S54.12XA — Injury of median nerve at forearm level, left arm, initial encounter
- S54.12XS — Injury of median nerve at forearm level, left arm, sequela
- S54.2 — Injury of radial nerve at forearm level
- S54.20 — Injury of radial nerve at forearm level, unspecified arm
- S54.20XA — Injury of radial nerve at forearm level, unspecified arm, initial encounter
- S54.20XD — Injury of radial nerve at forearm level, unspecified arm, subsequent encounter