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ICD-10/S31.40XS

S31.40XS ICD-10-CM Code: Unspecified open wound of vagina and vulva, 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 604 — TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITH MCC (MDC 09)
  • MS-DRG 605 — TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITHOUT MCC (MDC 09)

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

Unspecified open wound of vagina and vulva, sequela is a billable ICD-10-CM diagnosis code (S31.40S).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S31.40XS in the official ICD-10-CM tabular list.

Includes

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

  • injuries to the abdominal wall
  • injuries to the anus
  • injuries to the buttock
  • injuries to the external genitalia
  • injuries to the flank
  • injuries to the groin

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:
  • spinal cord injury (S24.0, S24.1-, S34.0-, S34.1-)
  • wound infection

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 S31.40XS 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]
  • S30-S39 — Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals [Hierarchy]

Referenced by Use Additional Code instructions

  • S38.1 — Crushing injury of abdomen, lower back, and pelvis [Use Additional Code](via S31.-): “open wound of abdominal wall (S31.-)” · check together

Referenced by Code Also instructions

  • S34 — Injury of lumbar and sacral spinal cord and nerves at abdomen, lower back and pelvis level [Code Also](via S31.-): “open wound of abdomen, lower back and pelvis (S31.-)” · check together
  • S35 — Injury of blood vessels at abdomen, lower back and pelvis level [Code Also](via S31.-): “any associated open wound (S31.-)” · check together
  • S36 — Injury of intra-abdominal organs [Code Also](via S31.-): “any associated open wound (S31.-)” · check together
  • S37 — Injury of urinary and pelvic organs [Code Also](via S31.-): “any associated open wound (S31.-)” · check together
  • S39 — Other and unspecified injuries of abdomen, lower back, pelvis and external genitals [Code Also](via S31.-): “any associated open wound (S31.-)” · check together

Clinical classification (CCSR)

  • INJ073 — Injury, sequela [CCSR]

Potential MS-DRG

  • DRG 604 — TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITH MCC [MS-DRG]: “TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITH MCC (MDC 09)”
  • DRG 605 — TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITHOUT MCC [MS-DRG]: “TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITHOUT MCC (MDC 09)”

MDC crossing · procedures (7376)

  • MDC 09 — Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast [MDC crossing]: “Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast — 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.”
  • 0315090 — Bypass Right Axillary Artery to Right Upper Arm Artery with Autologous Venous Tissue, Open Approach [Same-MDC procedure]: “Bypass Right Axillary Artery to Right Upper Arm Artery with Autologous Venous Tissue, Open Approach — grouped in MDC 09, the procedure side of this code's crossing.” · check together
  • 031509W — Bypass Right Axillary Artery to Lower Extremity Vein with Autologous Venous Tissue, Open Approach [Same-MDC procedure]: “Bypass Right Axillary Artery to Lower Extremity Vein with Autologous Venous Tissue, Open Approach — grouped in MDC 09, the procedure side of this code's crossing.” · check together
  • 03150A0 — Bypass Right Axillary Artery to Right Upper Arm Artery with Autologous Arterial Tissue, Open Approach [Same-MDC procedure]: “Bypass Right Axillary Artery to Right Upper Arm Artery with Autologous Arterial Tissue, Open Approach — grouped in MDC 09, the procedure side of this code's crossing.” · check together
  • 03150AW — Bypass Right Axillary Artery to Lower Extremity Vein with Autologous Arterial Tissue, Open Approach [Same-MDC procedure]: “Bypass Right Axillary Artery to Lower Extremity Vein with Autologous Arterial Tissue, Open Approach — grouped in MDC 09, the procedure side of this code's crossing.” · check together
  • 03150J0 — Bypass Right Axillary Artery to Right Upper Arm Artery with Synthetic Substitute, Open Approach [Same-MDC procedure]: “Bypass Right Axillary Artery to Right Upper Arm Artery with Synthetic Substitute, Open Approach — grouped in MDC 09, the procedure side of this code's crossing.” · check together
  • and 7371 more

Nearest codes (40)

  • S31 — Open wound of abdomen, lower back, pelvis and external genitals [Sibling]
  • S31.32 — Laceration with foreign body of scrotum and testes [Sibling]
  • S31.32XA — Laceration with foreign body of scrotum and testes, initial encounter [Sibling]
  • S31.32XD — Laceration with foreign body of scrotum and testes, subsequent encounter [Sibling]
  • S31.32XS — Laceration with foreign body of scrotum and testes, sequela [Sibling]
  • S31.33 — Puncture wound without foreign body of scrotum and testes [Sibling]
  • S31.33XA — Puncture wound without foreign body of scrotum and testes, initial encounter [Sibling]
  • S31.33XD — Puncture wound without foreign body of scrotum and testes, subsequent encounter [Sibling]
  • and 32 more

Referenced by Other Codes

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 604 (MDC 09), DRG 605 (MDC 09).

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 S31.40XS or its code family.

1 Use Additional Code instructions: S38.1 (via S31.-).

5 Code Also instructions: S34 (via S31.-), S35 (via S31.-), S36 (via S31.-), S37 (via S31.-), S39 (via S31.-).

Frequently Asked Questions (FAQ) & Clinical Guidance

Does S31.40XS require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S31.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S31.40XS in its code family, with their registry titles.

  • S31.35XS — Open bite of scrotum and testes, sequela
  • S31.4 — Open wound of vagina and vulva
  • S31.40 — Unspecified open wound of vagina and vulva
  • S31.40XA — Unspecified open wound of vagina and vulva, initial encounter
  • S31.40XD — Unspecified open wound of vagina and vulva, subsequent encounter
  • S31.41 — Laceration without foreign body of vagina and vulva
  • S31.41XA — Laceration without foreign body of vagina and vulva, initial encounter
  • S31.41XD — Laceration without foreign body of vagina and vulva, subsequent encounter
  • S31.41XS — Laceration without foreign body of vagina and vulva, sequela
  • S31.42 — Laceration with foreign body of vagina and vulva

View all codes in the S31 family