ICD-10-CM 2027
ICD-10 code for respiratory tract disease
From the official ICD-10-CM alphabetic index entry “Disease, diseased › respiratory (tract)”. Page updated September 29, 2026.
About coding respiratory tract disease
The ICD-10-CM code for respiratory tract disease is J98.9 (Respiratory disorder, unspecified). The official index lists 26 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on J98.9.
Within J98, choose J98.9 (Respiratory disorder, unspecified) only when documentation doesn't support a more specific option: diseases of bronchus, not elsewhere classified (J98.0), pulmonary collapse (J98.1), interstitial emphysema (J98.2), Compensatory emphysema (J98.3), other disorders of lung (J98.4), diseases of mediastinum, not elsewhere classified (J98.5), disorders of diaphragm (J98.6) and other specified respiratory disorders (J98.8).
Use an additional code to identify: exposure to environmental tobacco smoke (Z77.22), exposure to tobacco smoke in the perinatal period (P96.81), history of tobacco dependence (Z87.891), occupational exposure to environmental tobacco smoke (Z57.31), tobacco dependence (F17.-) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific respiratory tract disease codes (official index)
- acute or subacute NOS J06.9 — Acute upper respiratory infection, unspecified
- due to
- chemicals, gases, fumes or vapors (inhalation) J68.3 — Other acute and subacute respiratory conditions due to chemicals, gases, fumes and vapors
- external agent J70.9 — Respiratory conditions due to unspecified external agent
- specified NEC J70.8 — Respiratory conditions due to other specified external agents
- radiation J70.0 — Acute pulmonary manifestations due to radiation
- smoke inhalation J70.5 — Respiratory conditions due to smoke inhalation
- noninfectious J39.8 — Other specified diseases of upper respiratory tract
- chronic NOS J98.9 — Respiratory disorder, unspecified
- due to
- chemicals, gases, fumes or vapors J68.4 — Chronic respiratory conditions due to chemicals, gases, fumes and vapors
- external agent J70.9 — Respiratory conditions due to unspecified external agent
- specified NEC J70.8 — Respiratory conditions due to other specified external agents
- radiation J70.1 — Chronic and other pulmonary manifestations due to radiation
- newborn P27.9 — Unspecified chronic respiratory disease originating in the perinatal period
- specified NEC P27.8 — Other chronic respiratory diseases originating in the perinatal period
- due to
- chemicals, gases, fumes or vapors J68.9 — Unspecified respiratory condition due to chemicals, gases, fumes and vapors
- acute or subacute NEC J68.3 — Other acute and subacute respiratory conditions due to chemicals, gases, fumes and vapors
- chronic J68.4 — Chronic respiratory conditions due to chemicals, gases, fumes and vapors
- external agent J70.9 — Respiratory conditions due to unspecified external agent
- specified NEC J70.8 — Respiratory conditions due to other specified external agents
- newborn P28.9 — Respiratory condition of newborn, unspecified
- specified type NEC P28.89 — Other specified respiratory conditions of newborn
- upper J39.9 — Disease of upper respiratory tract, unspecified
- acute or subacute J06.9 — Acute upper respiratory infection, unspecified
- noninfectious NEC J39.8 — Other specified diseases of upper respiratory tract
- specified NEC J39.8 — Other specified diseases of upper respiratory tract
- streptococcal J06.9 — Acute upper respiratory infection, unspecified
Common questions about respiratory tract disease ICD-10 codes
What is the ICD-10 code for respiratory tract disease?
- J98.9 — Respiratory disorder, unspecified. More specific codes apply when the documentation supports them: J06.9, J68.3, J70.9, J70.8 and others below.
What is the ICD-10 code for acute or subacute nos respiratory tract disease?
- J06.9 — Acute upper respiratory infection, unspecified.
What is the ICD-10 code for chronic nos respiratory tract disease?
- J98.9 — Respiratory disorder, unspecified.
What is the ICD-10 code for newborn respiratory tract disease?
- P28.9 — Respiratory condition of newborn, unspecified.
What is the ICD-10 code for upper respiratory tract disease?
- J39.9 — Disease of upper respiratory tract, unspecified.
Is J98.9 billable?
- Yes. J98.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J98.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J98.9 as a principal diagnosis.
Is J98.9 a CC or MCC?
- No. J98.9 is neither a CC nor an MCC under MS-DRG v44.0.