Non-Billable / Non-Specific Code
ICD-10-CM W20 is the diagnosis code for Struck by thrown, projected or falling object. This code falls under the section "Exposure to inanimate mechanical forces" within Chapter 20 — External causes of morbidity (V00-Y99). 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 W20. They are mutually exclusive:
Understanding where W20 sits in the ICD-10-CM classification helps ensure proper coding:
No, W20 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
W20 is the ICD-10-CM diagnosis code for "Struck by thrown, projected or falling object". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
W20 is located in Section W20-W49 — "Exposure to inanimate mechanical forces" within Chapter 20 of the ICD-10-CM Tabular List.
W20 has 3 sub-code(s) that provide more specific detail: W20.0, W20.1, W20.8.
Use W20 when the patients documented diagnosis matches "Struck by thrown, projected or falling object" 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 Struck by thrown, projected or falling object is W20.
No, W20 is non-billable. Use a more specific sub-code for primary diagnosis billing.
W20 is in Chapter 20 of the ICD-10-CM Tabular List.
Type 1 Excludes for W20 include: falling object in machinery accident (W24, W28-W31); falling object in transport accident (V01-V99); object set in motion by explosion (W35-W40) and more.
Yes, W20 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.