J44.9 ICD-10-CM Code: Chronic obstructive pulmonary disease, unspecified
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
J44.9Chronic obstructive pulmonary disease, unspecified
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where J44.9 sits
- 1
Chapter 10
Diseases of the respiratory system (J00-J99)
- 2
Section
Chronic lower respiratory diseases (J40-J4B)
- 3
Category J44
Other chronic obstructive pulmonary disease
- 4
Code J44.9
Chronic obstructive pulmonary disease, unspecified
Documentation details
Notes for this code
Inclusion terms
- Chronic obstructive airway disease NOS
- Chronic obstructive lung disease NOS
Code first
No “code first” instruction is listed for J44.9.
Use additional code
No “use additional code” instruction is listed for J44.9.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for J44.9.
Excludes2
Conditions not included here that may be reported separately when present.
- lung diseases due to external agents (J60-J70)
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code J44.9 mean?
J44.9 is the FY 2027 U.S. ICD-10-CM code for “Chronic obstructive pulmonary disease, unspecified.”
Is J44.9 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, J44.9 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is J44.9 located in ICD-10-CM?
J44.9 is listed in Chapter 10, Diseases of the respiratory system (J00-J99), within Chronic lower respiratory diseases (J40-J4B) (J40–J4B), under category J44, Other chronic obstructive pulmonary disease.
What coding notes are listed for J44.9?
Its listed inclusion terms are Chronic obstructive airway disease NOS; Chronic obstructive lung disease NOS. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: lung diseases due to external agents (J60-J70).
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