J41.1 Mucopurulent chronic bronchitis

Billable ICD-10-CM code, FY2026.

Applies from J41 Simple and mucopurulent chronic bronchitis

Excludes2 (not included here)

• chronic bronchitis NOS (J42)
• chronic obstructive bronchitis (J44.-)

Use additional code

• 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.-)
• tobacco use (Z72.0)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 280 — Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders
• CMS-HCC V22: HCC 111 — Chronic Obstructive Pulmonary Disease
• RxHCC V08: HCC 229 — Chronic Obstructive Pulmonary Disease, Bronchiectasis, and Other Asthma
• ESRD V24: HCC 111

MS-DRG index

Defines the logic of DRG(s) 190-192 in MDC 04.

Approximate ICD-9-CM (GEMs)

• 491.1 Mucopurulent chronic bronchitis

Code annotations containing back-references to J41.1

Back-references to J41.1

• Type 2 Excludes: J20 Acute bronchitis ("chronic mucopurulent bronchitis (J41.1)")

Back-references to J41

• Type 1 Excludes: J42 Unspecified chronic bronchitis ("simple and mucopurulent chronic bronchitis (J41.-)")
• Type 2 Excludes: J44 Other chronic obstructive pulmonary disease ("chronic simple and mucopurulent bronchitis (J41.-)")

Diagnosis Index entries for J41.1

• Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) › chronic › mucopurulent
• Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) › chronic › purulent
• Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) › fetid
• Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) › mucopurulent (chronic) (recurrent)
• Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) › pituitous
• Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) › purulent (chronic) (recurrent)
• Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) › putrid
• Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) › suppurative (chronic)

Nearby codes

• J41 Simple and mucopurulent chronic bronchitis
• J41.0 Simple chronic bronchitis
• J41.1 Mucopurulent chronic bronchitis (this code)
• J41.8 Mixed simple and mucopurulent chronic bronchitis