ICD-10-CM Code Also Notes · Chapter 13 · FY 2027 M00-M99

Code Also Notes in Chapter 13: Diseases of the musculoskeletal system and connective tissue 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 13 (M00-M99), notes printed in the chapter name other codes 15 times, and Code Also Notes anywhere in the Tabular List name the chapter’s codes 9 times, covering 9 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
15
References in Its Notes
9
References to Its Codes
9
Chapter Codes Named
M00-M99
Chapter 13
Chapter 13

Code Also Notes by the code that carries the note

4 of 4 shown
  • M07 Enteropathic arthropathies applies to 24 codes
    • regional enteritis [Crohn's disease] (K50.-)
    • ulcerative colitis (K51.-)
  • M08 Juvenile arthritis applies to 125 codes
    • regional enteritis [Crohn's disease] (K50.-)
    • ulcerative colitis (K51.-)
  • M34.81 Systemic sclerosis with lung involvement
    • other interstitial pulmonary diseases (J84.89)
    • secondary pulmonary arterial hypertension (I27.21)
  • M35.81 Multisystem inflammatory syndrome
    • acute hepatic failure (K72.0-)
    • acute kidney failure (N17.-)
    • acute myocarditis (I40.-)
    • acute respiratory distress syndrome (J80)
    • cardiac arrhythmia (I47-I49.-)
    • pneumonia due to COVID-19 (J12.82)
    • severe sepsis (R65.2-)
    • viral cardiomyopathy (B33.24)
    • viral pericarditis (B33.23)

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.