ICD-10 code guides
Reviewed July 1, 2026

ICD-10 codes for COPD

COPD lives in category J44, and the fourth character does the work: stable disease, acute exacerbation, or acute lower respiratory infection. Exacerbation coding is one of the most commonly missed specificity opportunities in respiratory documentation.

J44.9 billable

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1

Paste or dictate a de-identified clinical note — a few sentences is enough.

2

Press Get codes. The coding system is fixed on this page.

3

Review each suggested code and its evidence, then copy the codes you agree with.

Clinical note

ICD-10-CM

Extracted codes

Evidence stays attached for review.

Paste a clinical note or load an example, then press Get codes. Suggestions appear here with the supporting evidence.

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COPD ICD-10 codes

Start with the primary code, then move to a more specific related code when the documentation supports it.

CodeDescriptionSystem

J44.9

Chronic obstructive pulmonary disease, unspecified

ICD-10-CM

J44.1

COPD with (acute) exacerbation

ICD-10-CM

J44.0

COPD with acute lower respiratory infection

Code also the infection (e.g. J18.-)

ICD-10-CM

J43.9

Emphysema, unspecified

ICD-10-CM

F17.210

Nicotine dependence, cigarettes, uncomplicated

ICD-10-CM

Z87.891

Personal history of nicotine dependence

ICD-10-CM

How to choose the right code

Stable COPD at routine review is J44.9. Documented worsening of dyspnea, sputum, or cough beyond day-to-day variation supports J44.1. If the trigger is a lower respiratory infection, use J44.0 and code the infection as well. Always capture smoking status: F17.21- for current dependence, Z87.891 for former.

Documentation example

COPD with increased breathlessness and purulent sputum for 3 days. Speaking in full sentences, SpO2 93% on air, scattered wheeze. No fever, chest clear of focal signs. Prednisolone 30 mg for 5 days and doxycycline started. Current smoker, 30 pack-years — cessation discussed.

Suggested:

J44.1
F17.210

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FactsContext extracts clinical facts first: diagnoses, symptoms, negatives, findings, test results, medications, and plan decisions.

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The clinician can read and reuse the extracted medical context directly, independent of the generated note.

Built for review

AI suggestions are not a substitute for clinician judgment, payer rules, local coding policy, or the official code set.

FAQ

What counts as an exacerbation for J44.1?

A documented acute worsening of respiratory symptoms beyond normal variation — typically increased dyspnea, sputum volume, or purulence — usually with a treatment change such as steroids or antibiotics.

How do I code COPD with pneumonia?

J44.0 (COPD with acute lower respiratory infection) plus the pneumonia code, e.g. J18.9.

Can AI catch the exacerbation I forgot to code?

Notat extracts symptom changes and treatment decisions as facts; if the note supports an exacerbation, it will suggest J44.1 with the exact sentence as evidence.

Related ICD-10 guides

Keep moving through the condition hub, or open the general medical coding guide for more coding systems and extractors.

Medical coding hub