ICD-10-CM M40 is the diagnosis code for Kyphosis and lordosis. This code falls under the section "Deforming dorsopathies" within Chapter 13 — Diseases of the musculoskeletal system and connective tissue (M00-M99). 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.
The following conditions should never be coded at the same time as M40. They are mutually exclusive:
Understanding where M40 sits in the ICD-10-CM classification helps ensure proper coding:
No, M40 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
M40 is the ICD-10-CM diagnosis code for "Kyphosis and lordosis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
M40 is located in Section M40-M43 — "Deforming dorsopathies" within Chapter 13 of the ICD-10-CM Tabular List.
M40 has 6 sub-code(s) that provide more specific detail: M40.0, M40.1, M40.2, M40.3, M40.4 and more.
Use M40 when the patients documented diagnosis matches "Kyphosis and lordosis" 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 Kyphosis and lordosis is M40.
No, M40 is non-billable. Use a more specific sub-code for primary diagnosis billing.
M40 is in Chapter 13 of the ICD-10-CM Tabular List.
Type 1 Excludes for M40 include: congenital kyphosis and lordosis (Q76.4); kyphoscoliosis (M41.-); postprocedural kyphosis and lordosis (M96.-).
Yes, M40 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.