S39.91 ICD-10-CM Code: Unspecified injury of abdomen
S39.91 is the authoritative medical code for Unspecified injury of abdomen. This classification is used in medical billing and clinical recording to specify the clinical criteria for unspecified injury of abdomen (ICD-10-CM S39.91), ensuring healthcare documentation aligns with current federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S39.91 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
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- sprain of joints and ligaments of lumbar spine and pelvis (S33.-)
- 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)
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated open wound (S31.-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Can S39.91 be billed directly?
No. S39.91 (Unspecified injury of abdomen) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does S39.91 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S39.
Can S39.91 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, S39.91 and the following are not considered part of each other and may both be reported when both conditions are present: sprain of joints and ligaments of lumbar spine and pelvis (S33.-); burns and corrosions (T20-T32); effects of foreign body in anus and rectum (T18.5); effects of foreign body in genitourinary tract (T19.-).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S39.91 in its code family, with their registry titles.
- S39.848 — Other specified injuries of external genitals
- S39.848A — Other specified injuries of external genitals, initial encounter
- S39.848D — Other specified injuries of external genitals, subsequent encounter
- S39.848S — Other specified injuries of external genitals, sequela
- S39.9 — Unspecified injury of abdomen, lower back, pelvis and external genitals
- S39.91XA — Unspecified injury of abdomen, initial encounter
- S39.91XD — Unspecified injury of abdomen, subsequent encounter
- S39.91XS — Unspecified injury of abdomen, sequela
- S39.92 — Unspecified injury of lower back
- S39.92XA — Unspecified injury of lower back, initial encounter
Indexed Clinical Terms (3)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Injury, abdomen, abdominal
- Injury, epigastric region
- Injury, iliac region