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ICD-10/S56.219A

S56.219A ICD-10-CM Code: Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm, initial 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 562 — FRACTURE, SPRAIN, STRAIN AND DISLOCATION EXCEPT FEMUR, HIP, PELVIS AND THIGH WITH MCC (MDC 08)
  • MS-DRG 563 — FRACTURE, SPRAIN, STRAIN AND DISLOCATION EXCEPT FEMUR, HIP, PELVIS AND THIGH WITHOUT MCC (MDC 08)
  • MS-DRG 963 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITH MCC (MDC 24)
  • MS-DRG 964 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITH CC (MDC 24)
  • MS-DRG 965 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITHOUT CC/MCC (MDC 24)

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

Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm, initial encounter is a billable ICD-10-CM diagnosis code (S56.219A).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S56.219A 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 muscle, fascia and tendon at or below wrist (S66.-)
  • sprain of joints and ligaments of elbow (S53.4-)
  • 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 S56.219A require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S56.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S56.219A in its code family, with their registry titles.

  • S56.212 — Strain of other flexor muscle, fascia and tendon at forearm level, left arm
  • S56.212A — Strain of other flexor muscle, fascia and tendon at forearm level, left arm, initial encounter
  • S56.212D — Strain of other flexor muscle, fascia and tendon at forearm level, left arm, subsequent encounter
  • S56.212S — Strain of other flexor muscle, fascia and tendon at forearm level, left arm, sequela
  • S56.219 — Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm
  • S56.219D — Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm, subsequent encounter
  • S56.219S — Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm, sequela
  • S56.22 — Laceration of other flexor muscle, fascia and tendon at forearm level
  • S56.221 — Laceration of other flexor muscle, fascia and tendon at forearm level, right arm
  • S56.221A — Laceration of other flexor muscle, fascia and tendon at forearm level, right arm, initial encounter

View all codes in the S56 family