DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

J22 diagnosis code · Billable category · FY2027

J22 Unspecified acute lower respiratory infection

  • Billable
  • Not CC/MCC
  • POA reported

J22 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. J20-J22 Other acute lower respiratory infections (J20-J22)
  3. J22 Unspecified acute lower respiratory infection
CC / MCC
Neither
MS-DRG
205-206
HCC V28
–
POA
Reported
Code Editor
–
Index entries
3

Instructions

At J22

Inclusion terms

  • Acute (lower) respiratory (tract) infection NOS

Excludes1

  • upper respiratory infection (acute) (J06.9) J06.9

Notes that also apply

Block J20-J22 instructions (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

  • Infection, infected, infective (opportunistic)chest → J22
  • Infection, infected, infective (opportunistic)respiratory (tract) NECacute → J22
  • Infection, infected, infective (opportunistic)respiratory (tract) NEClower (acute) → J22

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

Medicare grouping and edits

CMS files for J22
CC / MCCNeither
Appendix BMDC 04 Diseases and Disorders of the Respiratory System, MS-DRG 205-206 (Other Respiratory System Diagnoses with 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