ICD-10-CM Code First Notes · Chapter 20 · FY 2027 V00-Y99

Code First Notes in Chapter 20: External causes of morbidity and mortality ICD-10-CM

A Code First note means the underlying condition named in the note is sequenced before this code. In Chapter 20 (V00-Y99), notes printed in the chapter name other codes 6 times, and Code First Notes anywhere in the Tabular List name the chapter’s codes 4 times, covering 4 distinct codes, categories and ranges. Switch views to read the list either way.

✓ From the official FY 2027 ICD-10-CM Tabular ListDefinitions follow the Official Guidelines, Section I.A
6
References in Its Notes
4
References to Its Codes
4
Chapter Codes Named
V00-Y99
Chapter 20
Chapter 20

Code First Notes by the code that carries the note

4 of 4 shown
  • V92.2 Drowning and submersion due to being washed overboard from watercraft applies to 30 codes
    • any associated cataclysm (X37.0-)
  • W20 Struck by thrown, projected or falling object applies to 9 codes
  • W25 Contact with sharp glass applies to 3 codes
    • injury due to flying glass from explosion or firearm discharge (W32-W40)
    • transport accident (V00-V99)
  • Y90 Evidence of alcohol involvement determined by blood alcohol level applies to 10 codes
    • any associated alcohol related disorders (F10)

The first view lists notes printed in this chapter (a note on a category or block applies to every code beneath it). The second lists codes of this chapter named by Code First Notes anywhere in the Tabular List, including notes in other chapters.

Questions About Code First Notes

What does a Code First note mean?

A Code First note means the underlying condition named in the note is sequenced before the code that carries the note. Under the etiology/manifestation convention, a “code first” note appears at the manifestation code and a “use additional code” note at the etiology code (Section I.A.13). The FY 2027 Tabular List has 810 of them; 600 name other codes, with 736 references to 429 distinct codes, categories and ranges.

Can a code with a Code First note be the principal diagnosis?

Not when it is a manifestation code. Codes titled “in diseases classified elsewhere” are never permitted as the first-listed or principal diagnosis; they must follow the underlying condition. The etiology and manifestation page lists them all.

Related References

ICD-10-CM Official GuidelinesICD-10-CM Code LookupICD-10-CM Codes ListCode Lists by Tag

Source: FY 2027 ICD-10-CM Tabular List (CMS and NCHS) and the ICD-10-CM Official Guidelines for Coding and Reporting FY 2027, Section I.A. ICD List is not affiliated with CMS or NCHS.