W56.41XD ICD-10-CM Code: Bitten by shark, subsequent encounter
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for W56.41XD in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
- contact with venomous marine animal (T63.-) Compare W56.41XD vs T63 →
- Toxic effect of contact with venomous animals and plants (T63.-) Compare W56.41XD vs T63 →
Frequently Compared Codes
The official Excludes notes on W56.41XD name these codes. Each comparison page covers when the two can — or must not — be reported together.
Change history
No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.
Verify Before Coding
- Principal-diagnosis restriction. External cause of morbidity codes (V, W, X and Y) describe the circumstance that caused an injury, not the condition treated. The Medicare Code Editor rejects them as a principal diagnosis; sequence the injury or condition first and report this code as secondary.
From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.
Relationships & Classification
Other codes that name W56.41XD or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.
1 Excludes1 notes: W55 (via W56.-).
Clinical classification (AHRQ CCSR):EXT029 — External cause codes: subsequent encounter.
Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.
Related Codes
Same clinical category (CCSR)
AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (External cause codes: subsequent encounter).
Contextual Map
Every relationship of W56.41XD in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Hierarchy
- V00-Y99 — Chapter 20: External Causes of Morbidity (V00-Y99) (V00-Y99) [Hierarchy]
- W00-X58 — Other external causes of accidental injury [Hierarchy]
- W50-W64 — Exposure to animate mechanical forces [Hierarchy]
Referenced by Excludes1 notes
- W55 — Contact with other mammals [Excludes1](via W56.-): “contact with marine mammals (W56.-)” · check together
Clinical classification (CCSR)
- EXT029 — External cause codes: subsequent encounter [CCSR]
Nearest codes (40)
- W56 — Contact with nonvenomous marine animal [Sibling]
- W56.29 — Other contact with orca [Sibling]
- W56.29XA — Other contact with orca, initial encounter [Sibling]
- W56.29XD — Other contact with orca, subsequent encounter [Sibling]
- W56.29XS — Other contact with orca, sequela [Sibling]
- W56.3 — Contact with other marine mammals [Sibling]
- W56.31 — Bitten by other marine mammals [Sibling]
- W56.31XA — Bitten by other marine mammals, initial encounter [Sibling]
- and 32 more
Frequently Asked Questions (FAQ) & Clinical Guidance
Does W56.41XD require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category W56.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to W56.41XD in its code family, with their registry titles.
- W56.39XD — Other contact with other marine mammals, subsequent encounter
- W56.39XS — Other contact with other marine mammals, sequela
- W56.4 — Contact with shark
- W56.41 — Bitten by shark
- W56.41XA — Bitten by shark, initial encounter
- W56.41XS — Bitten by shark, sequela
- W56.42 — Struck by shark
- W56.42XA — Struck by shark, initial encounter
- W56.42XD — Struck by shark, subsequent encounter
- W56.42XS — Struck by shark, sequela