Non-Billable / Non-Specific Code
ICD-10-CM W56 is the diagnosis code for Contact with nonvenomous marine animal. This code falls under the section "Exposure to animate 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 W56. They are mutually exclusive:
Understanding where W56 sits in the ICD-10-CM classification helps ensure proper coding:
No, W56 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
W56 is the ICD-10-CM diagnosis code for "Contact with nonvenomous marine animal". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
W56 is located in Section W50-W64 — "Exposure to animate mechanical forces" within Chapter 20 of the ICD-10-CM Tabular List.
W56 has 7 sub-code(s) that provide more specific detail: W56.0, W56.1, W56.2, W56.3, W56.4 and more.
Use W56 when the patients documented diagnosis matches "Contact with nonvenomous marine animal" 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 Contact with nonvenomous marine animal is W56.
No, W56 is non-billable. Use a more specific sub-code for primary diagnosis billing.
W56 is in Chapter 20 of the ICD-10-CM Tabular List.
Type 1 Excludes for W56 include: contact with venomous marine animal (T63.-).
Yes, W56 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.