ICD-10-CM Code Also Notes · Chapter 5 · FY 2027 F01-F99

Code Also Notes in Chapter 5: Mental and behavioural disorders ICD-10-CM

A Code Also note means two codes may be needed to fully describe a condition; it gives no sequencing direction. In Chapter 5 (F01-F99), notes printed in the chapter name other codes 10 times, and Code Also Notes anywhere in the Tabular List name the chapter’s codes 33 times, covering 20 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
10
References in Its Notes
33
References to Its Codes
20
Chapter Codes Named
F01-F99
Chapter 5
Chapter 5

Code Also Notes by the code that carries the note

4 of 4 shown
  • F07.81 Postconcussional syndrome
    • , if applicable, sequela of concussion (S06.0X- with seventh character S)
  • F45.42 Pain disorder with related psychological factors
    • associated acute or chronic pain (G89.-)
  • F78.A1 SYNGAP1-related intellectual disability
    • autism spectrum disorder (F84.0)
    • autistic disorder (F84.0)
    • encephalopathy (G93.4-)
    • epilepsy and recurrent seizures (G40.-)
    • other pervasive developmental disorders (F84.8)
    • pervasive developmental disorder, NOS (F84.9)
  • F80.4 Speech and language development delay due to hearing loss

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 Also Notes anywhere in the Tabular List, including notes in other chapters.

Questions About Code Also Notes

What does a Code Also note mean?

A Code Also note instructs that two codes may be required to fully describe a condition, but it does not give sequencing direction (Section I.A.17). The FY 2027 Tabular List has 689 of them; 495 name other codes, with 538 references to 349 distinct codes, categories and ranges.

Which code goes first with a Code Also note?

The note does not decide it. Sequencing depends on the circumstances of the encounter: normally the condition that is the main reason for the visit goes first.

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.