S31.25XS ICD-10-CM Code: Open bite of penis, 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
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S31.25XS 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
Inclusion Terms
Alternative terms the tabular list files under this code.
- Bite of penis NOS
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).
- superficial bite of penis (S30.862, S30.872) Compare S31.25XS vs S30.862 →
- traumatic amputation of part of abdomen, lower back and pelvis (S38.2-, S38.3) Compare S31.25XS vs S38.2 →
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- open wound of hip (S71.00-S71.02) Compare S31.25XS vs S71.00 →
- open fracture of pelvis (S32.1--S32.9 with 7th character B) Compare S31.25XS vs S32.1 →
- burns and corrosions (T20-T32) Compare S31.25XS vs T20 →
- effects of foreign body in anus and rectum (T18.5) Compare S31.25XS vs T18.5 →
- effects of foreign body in genitourinary tract (T19.-) Compare S31.25XS vs T19 →
- effects of foreign body in stomach, small intestine and colon (T18.2-T18.4) Compare S31.25XS vs T18.2 →
- frostbite (T33-T34) Compare S31.25XS vs T33 →
- insect bite or sting, venomous (T63.4) Compare S31.25XS vs T63.4 →
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 S31.25XS 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
- S31.25 — Open bite of penis [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.-)”
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.-)”
- S35 — Injury of blood vessels at abdomen, lower back and pelvis level [Code Also](via S31.-): “any associated open wound (S31.-)”
- S36 — Injury of intra-abdominal organs [Code Also](via S31.-): “any associated open wound (S31.-)”
- S37 — Injury of urinary and pelvic organs [Code Also](via S31.-): “any associated open wound (S31.-)”
- S39 — Other and unspecified injuries of abdomen, lower back, pelvis and external genitals [Code Also](via S31.-): “any associated open wound (S31.-)”
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)”
Nearest codes (40)
- S31 — Open wound of abdomen, lower back, pelvis and external genitals [Sibling]
- S31.20XS — Unspecified open wound of penis, sequela [Sibling]
- S31.21 — Laceration without foreign body of penis [Sibling]
- S31.21XA — Laceration without foreign body of penis, initial encounter [Sibling]
- S31.21XD — Laceration without foreign body of penis, subsequent encounter [Sibling]
- S31.21XS — Laceration without foreign body of penis, sequela [Sibling]
- S31.22 — Laceration with foreign body of penis [Sibling]
- S31.22XA — Laceration with foreign body of penis, initial 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 S31.25XS 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 S31.25XS 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 S31.25XS in its code family, with their registry titles.
- S31.24XD — Puncture wound with foreign body of penis, subsequent encounter
- S31.24XS — Puncture wound with foreign body of penis, sequela
- S31.25 — Open bite of penis
- S31.25XA — Open bite of penis, initial encounter
- S31.25XD — Open bite of penis, subsequent encounter
- S31.3 — Open wound of scrotum and testes
- S31.30 — Unspecified open wound of scrotum and testes
- S31.30XA — Unspecified open wound of scrotum and testes, initial encounter
- S31.30XD — Unspecified open wound of scrotum and testes, subsequent encounter
- S31.30XS — Unspecified open wound of scrotum and testes, sequela