DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

J44.9 diagnosis code · Billable code · FY2027

J44.9 Chronic obstructive pulmonary disease, unspecified

  • Billable
  • Not CC/MCC
  • HCC 280
  • POA reported

J44.9 ICD-10 code: a billable diagnosis code in FY2027, one of 5 billable codes in category J44.

ICD-10 code by name

What is the ICD-10 code for chronic obstructive pulmonary disease, unspecified?
Chronic obstructive pulmonary disease ICD-10 code: J44.9 Chronic obstructive pulmonary disease, unspecified. Search ICD-10 for chronic obstructive pulmonary disease
CC / MCC
Neither
MS-DRG
190-192
HCC V28
280
POA
Reported
Code Editor
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Index entries
6

Instructions

At J44.9

Inclusion terms

  • Chronic obstructive airway disease NOS
  • Chronic obstructive lung disease NOS

Excludes2

  • lung diseases due to external agents (J60-J70) J60 J70

Notes that also apply

Includes from J44

  • asthma with chronic obstructive pulmonary disease
  • chronic asthmatic (obstructive) bronchitis
  • chronic bronchitis with airway obstruction
  • chronic bronchitis with emphysema
  • chronic emphysematous bronchitis
  • chronic obstructive asthma
  • chronic obstructive bronchitis
  • chronic obstructive tracheobronchitis

Excludes2 from J44

  • bronchiectasis (J47.-) J47
  • chronic bronchitis NOS (J42) J42
  • chronic simple and mucopurulent bronchitis (J41.-) J41
  • chronic tracheitis (J42) J42
  • chronic tracheobronchitis (J42) J42
  • emphysema without chronic bronchitis (J43.-) J43

Code also from J44

  • type of asthma, if applicable (J45.-) J45

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

  • Disease, diseasedairwayobstructive, chronic → J44.9
  • Disease, diseasedlungobstructive (chronic) → J44.9
  • Disease, diseasedpulmonarychronic obstructive → J44.9
  • Obstruction, obstructed, obstructiveairwaychronic → J44.9
  • Obstruction, obstructed, obstructivelungdisease, chronic → J44.9
  • Obstruction, obstructed, obstructiverespiratorychronic → J44.9

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

Medicare grouping and edits

CMS files for J44.9
CC / MCCNeither
Appendix BMDC 04 Diseases and Disorders of the Respiratory System, MS-DRG 190-192 (Chronic Obstructive Pulmonary Disease with MCC…)
Code Editor–
POAReported
HCC V28HCC 280 Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders

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

Hierarchy