DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

J40 diagnosis code · Billable category · FY2027

J40 Bronchitis, not specified as acute or chronic

  • Billable
  • Not CC/MCC
  • POA reported

J40 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

Where it sits

  1. Chapter 10 Diseases of the respiratory system (J00-J99)
  2. J40-J4B Chronic lower respiratory diseases (J40-J4B)
  3. J40 Bronchitis, not specified as acute or chronic
CC / MCC
Neither
MS-DRG
202-203
HCC V28
–
POA
Reported
Code Editor
–
Index entries
4

Instructions

At J40

Inclusion terms

  • Bronchitis NOS
  • Bronchitis with tracheitis NOS
  • Catarrhal bronchitis
  • Tracheobronchitis NOS

Excludes1

  • acute bronchitis (J20.-) J20
  • allergic bronchitis NOS (J45.909) J45.909
  • asthmatic bronchitis NOS (J45.9-) J45.9
  • bronchitis due to chemicals, gases, fumes and vapors (J68.0) J68.0

Use additional code

  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22) Z77.22
  • exposure to tobacco smoke in the perinatal period (P96.81) P96.81
  • history of tobacco dependence (Z87.891) Z87.891
  • occupational exposure to environmental tobacco smoke (Z57.31) Z57.31
  • tobacco dependence (F17.-) F17
  • tobacco use (Z72.0) Z72.0

Notes that also apply

Block J40-J4B instructions (Excludes1 1, Excludes2 1): printed on the block page.

Chapter 10 instructions (Notes 1, Excludes2 9, Use additional code 7): printed on the chapter 10 page.

Index entries

  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) → J40
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)catarrhal (l5 years of age and above) → J40
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)withtracheitis (l5 years of age and above) → J40
  • Tracheitis (catarrhal) (infantile) (membranous) (plastic) (septal) (suppurative) (viral)withbronchitis (15 years of age and above) → J40

NCHS Alphabetic Index. Index first, then the Tabular List.

Medicare grouping and edits

CMS files for J40
CC / MCCNeither
Appendix BMDC 04 Diseases and Disorders of the Respiratory System, MS-DRG 202-203 (Bronchitis and Asthma with CC/MCC…)
Code Editor–
POAReported
HCC V28–

CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.

Hierarchy