Billable / Specific Code
ICD-10-CM W20.1 is the diagnosis code for Struck by object due to collapse of building. This code falls under the section "Exposure to inanimate mechanical forces" within Chapter 20 — External causes of morbidity (V00-Y99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 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 W20.1. They are mutually exclusive:
Understanding where W20.1 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, W20.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
W20.1 is the ICD-10-CM diagnosis code for "Struck by object due to collapse of building". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of W20.1 is W20 ("Struck by thrown, projected or falling object"). W20.1 provides a more specific classification within this category.
W20.1 is located in Section W20-W49 — "Exposure to inanimate mechanical forces" within Chapter 20 of the ICD-10-CM Tabular List.
Use W20.1 when the patients documented diagnosis matches "Struck by object due to collapse of building" 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 object due to collapse of building is W20.1.
Yes, W20.1 can be used as a primary diagnosis code since it is billable and specific.
W20.1 is in Chapter 20 of the ICD-10-CM Tabular List.
Type 1 Excludes for W20.1 include: struck by object due to collapse of burning building (X00.2, X02.2).
Yes, W20.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.