ICD-10-CM K40 is the diagnosis code for Inguinal hernia. This code falls under the section "Hernia" within Chapter 11 — Diseases of the digestive system (K00-K95). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where K40 sits in the ICD-10-CM classification helps ensure proper coding:
No, K40 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
K40 is the ICD-10-CM diagnosis code for "Inguinal hernia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
K40 is located in Section K40-K46 — "Hernia" within Chapter 11 of the ICD-10-CM Tabular List.
K40 has 6 sub-code(s) that provide more specific detail: K40.0, K40.1, K40.2, K40.3, K40.4 and more.
Use K40 when the patients documented diagnosis matches "Inguinal hernia" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Inguinal hernia is K40.
No, K40 is non-billable. Use a more specific sub-code for primary diagnosis billing.
K40 is in Chapter 11 of the ICD-10-CM Tabular List.
Yes, K40 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.