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W55.49XA ICD-10-CM Code: Other contact with pig, initial encounter

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Official Registry Overview & Definition

Other contact with pig, initial encounter is a billable ICD-10-CM diagnosis code (W55.49A).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for W55.49XA in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • contact with saliva, feces or urine of mammal

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).

Frequently Compared Codes

The official Excludes notes on W55.49XA 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

Clinical classification (AHRQ CCSR):EXT011 — External cause codes: natural/environment; initial encounter; EXT020 — External cause codes: intent of injury, accidental/unintentional.

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 categories (External cause codes: natural/environment; initial encounter, External cause codes: intent of injury, accidental/unintentional).

W54.8XXA — Other contact with dog, initial encounter, W55.03XA — Scratched by cat, initial encounter, W55.09XA — Other contact with cat, initial encounter, W55.12XA — Struck by horse, initial encounter, W55.19XA — Other contact with horse, initial encounter, W55.22XA — Struck by cow, initial encounter, W55.29XA — Other contact with cow, initial encounter, W55.32XA — Struck by other hoof stock, initial encounter, W55.39XA — Other contact with other hoof stock, initial encounter, W55.42XA — Struck by pig, initial encounter, W55.52XA — Struck by raccoon, initial encounter, W55.59XA — Other contact with raccoon, initial encounter, W55.82XA — Struck by other mammals, initial encounter, W55.89XA — Other contact with other mammals, initial encounter, W56.02XA — Struck by dolphin, initial encounter, W56.09XA — Other contact with dolphin, initial encounter, W56.12XA — Struck by sea lion, initial encounter, W56.19XA — Other contact with sea lion, initial encounter, W56.22XA — Struck by orca, initial encounter, W56.29XA — Other contact with orca, initial encounter, +2297 more

Contextual Map

Every relationship of W55.49XA 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]

Clinical classification (CCSR)

  • EXT011 — External cause codes: natural/environment; initial encounter [CCSR]
  • EXT020 — External cause codes: intent of injury, accidental/unintentional [CCSR]

Nearest codes (40)

  • W55 — Contact with other mammals [Sibling]
  • W55.31XD — Bitten by other hoof stock, subsequent encounter [Sibling]
  • W55.31XS — Bitten by other hoof stock, sequela [Sibling]
  • W55.32 — Struck by other hoof stock [Sibling]
  • W55.32XA — Struck by other hoof stock, initial encounter [Sibling]
  • W55.32XD — Struck by other hoof stock, subsequent encounter [Sibling]
  • W55.32XS — Struck by other hoof stock, sequela [Sibling]
  • W55.39 — Other contact with other hoof stock [Sibling]
  • and 32 more

Frequently Asked Questions (FAQ) & Clinical Guidance

Does W55.49XA require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category W55.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to W55.49XA in its code family, with their registry titles.

  • W55.42 — Struck by pig
  • W55.42XA — Struck by pig, initial encounter
  • W55.42XD — Struck by pig, subsequent encounter
  • W55.42XS — Struck by pig, sequela
  • W55.49 — Other contact with pig
  • W55.49XD — Other contact with pig, subsequent encounter
  • W55.49XS — Other contact with pig, sequela
  • W55.5 — Contact with raccoon
  • W55.51 — Bitten by raccoon
  • W55.51XA — Bitten by raccoon, initial encounter

View all codes in the W55 family