K40.3
Unilateral inguinal hernia, with obstruction, without gangrene
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 8 never code together
K00-K95chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 15
K40.3code
Inclusion terms
- Inguinal hernia (unilateral) causing obstruction without gangrene
- Incarcerated inguinal hernia (unilateral) without gangrene
- Irreducible inguinal hernia (unilateral) without gangrene
- Strangulated inguinal hernia (unilateral) without gangrene
K40code
Includes
- bubonocele
- direct inguinal hernia
- double inguinal hernia
- indirect inguinal hernia
- inguinal hernia NOS
- oblique inguinal hernia
- scrotal hernia
K40-K46block
Notes
- Hernia with both gangrene and obstruction is classified to hernia with gangrene.
Includes
- acquired hernia
- congenital [except diaphragmatic or hiatus] hernia
- recurrent hernia
Index entries leading here filed at null
No alphabetic index entry points at this code.
Alongside this code 5 same parent — K40
K40.0 Bilateral inguinal hernia, with obstruction, w/o gangrene category K40.1 Bilateral inguinal hernia, with gangrene category K40.2 Bilateral inguinal hernia, without obstruction or gangrene category K40.4 Unilateral inguinal hernia, with gangrene category K40.9 Unilateral inguinal hernia, without obstruction or gangrene category
Subordinate codes 2
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.