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S31.151S vs S71.00

S31.151S (Open bite of abdominal wall, left upper quadrant without penetration into peritoneal cavity, sequela) compared with S71.00 (Unspecified open wound of hip), from the official CMS tabular data.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources

Summary

These codes can be reported together when both conditions are documented, because S31.151S lists S71.00 under Excludes2, which marks them as distinct conditions.

Official rule
What is different?

The conditions named and billing status.S31.151S is “Open bite of abdominal wall, left upper quadrant without penetration into peritoneal cavity, sequela”; S71.00 is “Unspecified open wound of hip”. S71.00 is a non-billable header; S31.151S is billable.

Registry fact

Can these codes be reported together?

Yes, when both are documented.S31.151S lists S71.00 under Excludes2: “open wound of hip (S71.00-S71.02)”. Excludes2 marks distinct conditions that may both be reported when both are documented.

Official ruleGuide: Excludes1 vs Excludes2

Is there an Excludes1 relationship?

None.Neither entry carries an Excludes1 note that names the other code. S31.151S carries 2 Excludes1 notes and S71.00 carries 2 Excludes1 notes covering other codes; the side-by-side table quotes them.

Official rule

Is there an Excludes2 relationship?

Yes.S31.151S’s tabular entry: “open wound of hip (S71.00-S71.02)”. The note covers S71.00.

Official ruleGuide: Excludes1 vs Excludes2

Is one more specific?

Not comparable.The codes sit in different categories; specificity is only comparable within one category.

Is one a parent or header code?

One is a header.S71.00 is a non-billable header, but S31.151S is not one of its subdivisions.

Registry fact

Are there sequencing instructions?

None.Neither entry carries a Code First or Use Additional Code note that names the other.

Official rule

Are there other coding relationships?

None found.No laterality, encounter-phase, Table of Neoplasms, Table of Drugs and Chemicals, or history-versus-active-disease relationship links these codes.

MedCoder-derived

Official rule: a tabular instructional note or a section of the ICD-10-CM Official Guidelines, quoted as published. Registry fact: the codes’ own published attributes (titles, billable status, position in the hierarchy, code set). MedCoder-derived: a reading MedCoder computes from those facts; it is not itself a rule. How to read the labels

Can these codes be reported together?

Informational

Excludes2 relationship

S31.151S
Open bite of abdominal wall, left upper quadrant without penetration into peritoneal cavity, sequela
↔
S71.00
Unspecified open wound of hip

What we found

Yes, when both are documented.S31.151S carries an Excludes2 note covering S71.00: “open wound of hip (S71.00-S71.02)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

What to review

Report both only when the documentation supports both conditions; otherwise report the one documented.

Guide: Excludes1 vs Excludes2Check these on a claim

Why it matters

An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.

Source / rule

CMS ICD-10-CM tabular instructional notes

Official guidance behind these answers

  • Section I.A.12.b — Excludes2 · applies to: Excludes2

    A type 2 Excludes note represents “Not included here.” An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

    ICD-10-CM Official Guidelines FY2027

Quoted from the ICD-10-CM Official Guidelines for Coding and Reporting in effect for the release shown. The tabular notes above are the code-level instruction; these sections are the convention that says how such a note is applied. Source document (CMS PDF) · Release and checksum

Side by side

S31.151SOpen bite of abdominal wall, left upper quadrant without penetration into peritoneal cavity, sequelaS71.00Unspecified open wound of hip
Billing statusBillableNon-billable header

Report instead: S71.001A, S71.001D, S71.001S, S71.002A, S71.002D

ClassificationS00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionOpen bite of abdominal wall, left upper quadrant without penetration into peritoneal cavity, sequela is a billable ICD-10-CM diagnosis code (S31.151S).Unspecified open wound of hip is a non-billable ICD-10-CM category code (S71.00).
7th characterThe appropriate 7th character is to be added to each code from category S31The appropriate 7th character is to be added to each code from category S71
Includes
injuries to the abdominal wall
injuries to the anus
injuries to the buttock
injuries to the external genitalia
—
Excludes1
superficial bite of abdominal wall (S30.871)
traumatic amputation of part of abdomen, lower back and pelvis (S38.2-, S38.3)
open fracture of hip and thigh (S72.-)
traumatic amputation of hip and thigh (S78.-)
Excludes2
open wound of abdominal wall with penetration into peritoneal cavity (S31.6-)
open wound of hip (S71.00-S71.02)
open fracture of pelvis (S32.1--S32.9 with 7th character B)
burns and corrosions (T20-T32)
effects of foreign body in anus and rectum (T18.5)
effects of foreign body in genitourinary tract (T19.-)
effects of foreign body in stomach, small intestine and colon (T18.2-T18.4)
frostbite (T33-T34)
insect bite or sting, venomous (T63.4)
bite of venomous animal (T63.-)
open wound of ankle, foot and toes (S91.-)
open wound of knee and lower leg (S81.-)
burns and corrosions (T20-T32)
frostbite (T33-T34)
snake bite (T63.0-)
venomous insect bite or sting (T63.4-)
Code also
any associated:
spinal cord injury (S24.0, S24.1-, S34.0-, S34.1-)
wound infection
any associated wound infection

Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on.

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Derived from the official CMS ICD-10-CM tabular data (FY2027). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources