496Chronic airway obstruction, not elsewhere classified
- Legacy / Not Valid for Submission
- Replaced October 1, 2015
496 is a legacy ICD-9-CM diagnosis code for chronic airway obstruction, not elsewhere classified. It was valid on U.S. claims through September 30, 2015 and cannot be reported for services on or after October 1, 2015, when ICD-10-CM replaced the ICD-9 code set. Under the CMS General Equivalence Mappings, its ICD-10-CM replacement is J44.9 (Chronic obstructive pulmonary disease, unspecified), flagged as an approximate match.
Code Identity
Convert 496 to ICD-10-CM
Based on the final CMS General Equivalence Mappings (GEMs), 496 crosswalks to the following ICD-10-CM code.
Approximate Synonyms
Alternate clinical terms that were indexed to 496:
- Acute exacerbation of chronic obstructive airways disease
- Chronic obstructive lung disease
- Chronic obstructive pulmonary disease with acute lower respiratory infection
- End stage chronic obstructive airways disease
- Mild chronic obstructive pulmonary disease
- Moderate chronic obstructive pulmonary disease
- Pulmonary hypertension due to chronic obstructive pulmonary disease
- Pulmonary hypertension due to pulmonary disease with mixed restrictive and obstructive pattern
- Severe chronic obstructive pulmonary disease
Index of Diseases References
Entries in the final ICD-9-CM Index to Diseases and Injuries that point to 496. Tap the icons for the official index conventions.
- Bronchospasm 519.11
- Disease diseased SEE ALSO Syndrome
- lung NEC 518.89
- nonspecific chronic 496
- pulmonary SEE ALSO Disease lung
- diffuse obstructive chronic 496
- respiratory tract 519.9
- obstructive 496
- lung NEC 518.89
- DOPS diffuse obstructive pulmonary syndrome 496
- Obstruction obstructed obstructive
- airway NEC 519.8
- lung 518.89
- airway chronic 496
- chronic NEC 496
- with
- asthma chronic obstructive 493.2
- with
- disease chronic 496
- with
- asthma chronic obstructive 493.2
- with
- respiratory 519.8
- chronic 496
- Syndrome SEE ALSO Disease
- diffuse obstructive pulmonary 496
Information for Patients
COPD
COPD (chronic obstructive pulmonary disease) is a group of lung diseases that make it hard to breathe and get worse over time.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Questions About 496
Is 496 (chronic airway obstruction, not elsewhere classified) still a valid code?
No. This code belonged to ICD-9-CM, which the United States retired after September 30, 2015. Claims with dates of service on or after October 1, 2015 must use ICD-10-CM codes, such as its replacement J44.9.
What is the ICD-10 replacement for 496?
The General Equivalence Mappings crosswalk this code to ICD-10-CM J44.9 (Chronic obstructive pulmonary disease, unspecified). The match is flagged as approximate, so confirm it against the clinical documentation before use.
What did 496 mean?
In the final ICD-9-CM release, this code described chronic airway obstruction, not elsewhere classified. It sat in block 496 Chronic airways obstruction, not elsewhere classified under Diseases of the respiratory system (460–519).
