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    v1.0.28
    OpenPayerBilling CodesHerniaICD-10-CM k40-inguinal-hernia
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    ICD-10-CM Code For Inguinal Hernia: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group K40 includes diagnoses for inguinal hernias, covering direct and indirect inguinal hernias, unilateral and bilateral presentations, and distinctions for incarceration or strangulation. These ICD-10-CM diagnosis codes are used to document clinical scenarios that capture disease severity, laterality, and complications such as incarceration or strangulation relevant to this group. Accurate coding within the ICD-10-CM K40 group supports proper claim adjudication.

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    ICD-10-CM K40: Inguinal Hernia Overview

    The ICD-10-CM K40 group represents diagnoses for inguinal hernias, including direct and indirect types and distinctions for laterality and incarceration or strangulation. These conditions affect the abdominal wall and groin region where abdominal contents protrude through the inguinal canal. Accurate coding matters for reimbursement because it captures clinical complexity, informs procedure selection, and supports proper claim adjudication.

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    When to Use

    Use a code from the ICD-10-CM K40 group when documenting a diagnosis of inguinal hernia, specifying laterality and whether the hernia is incarcerated or strangulated. Select codes that match the documented type (direct versus indirect), laterality, and presence of complications to accurately reflect the clinical situation.

    ICD-10-CM Codes

    12 rows

    ICD-10-CM CodeDescription
    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

    DRG Codes

    5 rows

    DRG CodeDescription
    393Other Digestive System Diagnoses with MCC
    394Other Digestive System Diagnoses with CC
    395Other Digestive System Diagnoses without CC/MCC
    791Prematurity with Major Problems
    793Full Term Neonate with Major Problems

    Related Codes

    K41-FEMORAL-HERNIA

    ICD-10-CM Code For Femoral Hernia: Group Overview

    K42-UMBILICAL-HERNIA

    ICD-10-CM Code For Umbilical Hernia: Group Overview

    K43-VENTRAL-HERNIA

    ICD-10-CM Code For Ventral Hernia: Group Overview

    K44-DIAPHRAGMATIC-HERNIA

    ICD-10-CM Code For Diaphragmatic Hernia: Group Overview

    K45-OTHER-ABDOMINAL-HERNIA

    ICD-10-CM Code For Other Abdominal Hernia: Group Overview

    K46-UNSPECIFIED-ABDOMINAL-HERNIA

    ICD-10-CM Code For Unspecified Abdominal Hernia: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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