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

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

A Use Additional Code note means a second code should be added, after this one, to fully describe the condition. In Chapter 20 (V00-Y99), notes printed in the chapter name other codes 7 times, and Use Additional Code Notes anywhere in the Tabular List name the chapter’s codes 200 times, covering 26 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
7
References in Its Notes
200
References to Its Codes
26
Chapter Codes Named
V00-Y99
Chapter 20
Chapter 20

Use Additional Code Notes by the code that carries the note

4 of 4 shown
  • Block note Block V00-V99 Transport accidents applies to 4,086 codes
    • Airbag injury (W22.1)
    • Type of street or road (Y92.4-)
    • Use of cellular telephone and other electronic equipment at the time of the transport accident (Y93.C-)
  • V00 Pedestrian conveyance accident applies to 168 codes
    • place of occurrence and activity external cause codes, if known (Y92.-, Y93.-)
  • W21.4 Striking against diving board applies to 3 codes
    • code for subsequent falling into water, if applicable (W16.-)
  • Y38 Terrorism applies to 96 codes
    • code for place of occurrence (Y92.-)

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 Use Additional Code Notes anywhere in the Tabular List, including notes in other chapters.

Questions About Use Additional Code Notes

What does a Use Additional Code note mean?

A Use Additional Code note tells you to add a second code, reported after the code that carries the note, to describe the condition completely. In an etiology/manifestation pair it sits at the etiology code and points to the manifestation (Section I.A.13). The FY 2027 Tabular List has 1,491 of them; 1,174 name other codes, with 1,438 references to 389 distinct codes, categories and ranges.

Where does the additional code go?

After the code carrying the note. For etiology/manifestation pairs the Guidelines are explicit: the etiology is sequenced first, followed by the manifestation code.

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.