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W61.99XS ICD-10-CM Code: Other contact with other birds, sequela

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

Coding at a Glance

7th character
Required — see the character table on this page
Tabular directives
2 inclusion terms · 1 Excludes1

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for W61.99XS in the official ICD-10-CM tabular list, quoted as published.

Notes without a marker are published on W61.99XS itself; “inherited from” names the category or block whose note applies here.

Includes

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

  • contact with excreta of birds

Source: inherited from W61

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Contact with bird NOS

Source: inherited from W61.99

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).

Source: inherited from W50-W64

7th Character Guide

"The appropriate 7th character is to be added to each code from category W61"

  • A — initial encounter
  • D — subsequent encounter
  • S — sequela (this page’s code)

How the encounter character is assigned. “Initial encounter” means the patient is receiving active treatment for the condition — it is not limited to the first visit, and a different or new provider giving active treatment still assigns it. “Subsequent encounter” covers care during the healing or recovery phase after active treatment. “Sequela” is for complications or conditions that arise as a direct result of the original condition.

ICD-10-CM Official Guidelines for Coding and Reporting, Section I.C.19.a (paraphrased by MedCoder).

Variant codes in this family

W61.99XA, W61.99XD, W61.99XS

Character meanings are CMS's official 7th-character extensions for this family, as carried in each variant code's official description; variant codes are registry rows. The explanation of how the encounter character is assigned is MedCoder editorial, distinct from the official content above it.

Code Overview

Other contact with other birds, sequela is a billable ICD-10-CM diagnosis code (W61.99XS).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

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 in Claim Check.

Relationships & Classification

Other codes that name W61.99XS 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.

Referenced by 27 Excludes1 notes: W20 — Struck by thrown, projected or falling object (via W61.-), W20-W49 — Exposure to inanimate mechanical forces (W20-W49) (via W61.-), W21 — Striking against or struck by sports equipment (via W61.-), W22 — Striking against or struck by other objects (via W61.-), W23 — Caught, crushed, jammed or pinched in or between objects (via W61.-), W24 — Contact with lifting and transmission devices, not elsewhere classified (via W61.-), W25 — Contact with sharp glass (via W61.-), W26 — Contact with other sharp objects (via W61.-), W27 — Contact with nonpowered hand tool (via W61.-), W28 — Contact with powered lawn mower (via W61.-), W29 — Contact with other powered hand tools and household machinery (via W61.-), W30 — Contact with agricultural machinery (via W61.-), W31 — Contact with other and unspecified machinery (via W61.-), W32 — Accidental handgun discharge and malfunction (via W61.-), W33 — Accidental rifle, shotgun and larger firearm discharge and malfunction (via W61.-), W34 — Accidental discharge and malfunction from other and unspecified firearms and guns (via W61.-), W35 — Explosion and rupture of boiler (via W61.-), W36 — Explosion and rupture of gas cylinder (via W61.-), W37 — Explosion and rupture of pressurized tire, pipe or hose (via W61.-), W38 — Explosion and rupture of other specified pressurized devices (via W61.-), +7 more.

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Clinical classification (AHRQ CCSR):EXT030 — External cause codes: sequela.

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: sequela).

+2321 more

Contextual Map

Every relationship of W61.99XS 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.

Run W61.99XS with these 8 related codes in Claim Check

Hierarchy

Referenced by Excludes1 notes (27)

Clinical classification (CCSR)

Nearest codes (40)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Common coding questions

Does W61.99XS require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category W61.

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder structured relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Other contact with other birds, sequela

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to W61.99XS in its code family, with their registry titles.

View all codes in the W61 family