K40 — Inguinal hernia
Not billable
Is K40 billable?
No — K40 is a non-billable header code. K40 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 12 billable codes beneath K40.
Billable codes under this header
- K40.00Bilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent
- K40.01Bilateral inguinal hernia, with obstruction, without gangrene, recurrent
- K40.10Bilateral inguinal hernia, with gangrene, not specified as recurrent
- K40.11Bilateral inguinal hernia, with gangrene, recurrent
- K40.20Bilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent
- K40.21Bilateral inguinal hernia, without obstruction or gangrene, recurrent
- K40.30Unilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent
- K40.31Unilateral inguinal hernia, with obstruction, without gangrene, recurrent
- K40.40Unilateral inguinal hernia, with gangrene, not specified as recurrent
- K40.41Unilateral inguinal hernia, with gangrene, recurrent
- K40.90Unilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent
- K40.91Unilateral inguinal hernia, without obstruction or gangrene, recurrent
K40 at a glance
| Code | K40 |
|---|---|
| Description | Inguinal hernia |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Includes
Conditions classified to K40.
- bubonocele
- direct inguinal hernia
- double inguinal hernia
- indirect inguinal hernia
- inguinal hernia NOS
- oblique inguinal hernia
- scrotal hernia
Excludes2 — not included here — inherited from Chapter 11
The conditions below are not part of K40, but a patient may have both at the same time. When documentation supports it, K40 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
What codes fall under K40? (6)
- K40.0Bilateral inguinal hernia, with obstruction, without gangrenenot billable
- K40.1Bilateral inguinal hernia, with gangrenenot billable
- K40.2Bilateral inguinal hernia, without obstruction or gangrenenot billable
- K40.3Unilateral inguinal hernia, with obstruction, without gangrenenot billable
- K40.4Unilateral inguinal hernia, with gangrenenot billable
- K40.9Unilateral inguinal hernia, without obstruction or gangrenenot billable
How long has K40 existed?
K40 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.