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S53.21XD ICD-10-CM Code: Traumatic rupture of right radial collateral ligament, 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, Appendix B.

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

Traumatic rupture of right radial collateral ligament, subsequent encounter is a billable ICD-10-CM diagnosis code (S53.21D).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S53.21XD in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • avulsion of joint or ligament of elbow
  • laceration of cartilage, joint or ligament of elbow
  • sprain of cartilage, joint or ligament of elbow
  • traumatic hemarthrosis of joint or ligament of elbow
  • traumatic rupture of joint or ligament of elbow
  • traumatic subluxation of joint or ligament of elbow
  • traumatic tear of joint or ligament of elbow

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Code Also

Additional codes that may be required to fully describe the encounter.

  • any associated open wound

Frequently Compared Codes

The official Excludes notes on S53.21XD name these codes. Each comparison page covers when the two can — or must not — be reported together.

Change history

No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

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 S53.21XD 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]
  • S50-S59 — Injuries to the elbow and forearm [Hierarchy]

Referenced by Excludes2 notes

  • S53.4 — Sprain of elbow [Excludes2](via S53.2.-): “traumatic rupture of radial collateral ligament (S53.2-)” · check together

Clinical classification (CCSR)

  • INJ061 — Sprains and strains, subsequent encounter [CCSR]

Potential MS-DRG

  • DRG 949 — AFTERCARE WITH CC/MCC [MS-DRG]: “AFTERCARE WITH CC/MCC (MDC 23)”
  • DRG 950 — AFTERCARE WITHOUT CC/MCC [MS-DRG]: “AFTERCARE WITHOUT CC/MCC (MDC 23)”

MDC crossing · procedures (1235)

  • MDC 23 — Factors Influencing Health Status and Other Contacts with Health Services [MDC crossing]: “Factors Influencing Health Status and Other Contacts with Health Services — 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.”
  • F003GKZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GMZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GPZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GYZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GZZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • and 1230 more

Nearest codes (40)

  • S53 — Dislocation and sprain of joints and ligaments of elbow [Sibling]
  • S53.193S — Other subluxation of unspecified ulnohumeral joint, sequela [Sibling]
  • S53.194 — Other dislocation of right ulnohumeral joint [Sibling]
  • S53.194A — Other dislocation of right ulnohumeral joint, initial encounter [Sibling]
  • S53.194D — Other dislocation of right ulnohumeral joint, subsequent encounter [Sibling]
  • S53.194S — Other dislocation of right ulnohumeral joint, sequela [Sibling]
  • S53.195 — Other dislocation of left ulnohumeral joint [Sibling]
  • S53.195A — Other dislocation of left ulnohumeral joint, initial encounter [Sibling]
  • and 32 more

Referenced by Other Codes

Clinical classification (AHRQ CCSR):INJ061 — Sprains and strains, subsequent encounter (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 949 (MDC 23), DRG 950 (MDC 23).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Official ICD-10-CM tabular notes on other codes that name S53.21XD or its code family.

1 Excludes2 notes: S53.4 (via S53.2.-).

Frequently Asked Questions (FAQ) & Clinical Guidance

Does S53.21XD require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S53.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S53.21XD in its code family, with their registry titles.

  • S53.20XA — Traumatic rupture of unspecified radial collateral ligament, initial encounter
  • S53.20XD — Traumatic rupture of unspecified radial collateral ligament, subsequent encounter
  • S53.20XS — Traumatic rupture of unspecified radial collateral ligament, sequela
  • S53.21 — Traumatic rupture of right radial collateral ligament
  • S53.21XA — Traumatic rupture of right radial collateral ligament, initial encounter
  • S53.21XS — Traumatic rupture of right radial collateral ligament, sequela
  • S53.22 — Traumatic rupture of left radial collateral ligament
  • S53.22XA — Traumatic rupture of left radial collateral ligament, initial encounter
  • S53.22XD — Traumatic rupture of left radial collateral ligament, subsequent encounter
  • S53.22XS — Traumatic rupture of left radial collateral ligament, sequela

View all codes in the S53 family