DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

B49 diagnosis code · Billable category · FY2027

B49 Unspecified mycosis

  • Billable
  • CC
  • POA reported

B49 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

CC / MCC
CC
MS-DRG
867-869
HCC V28
–
POA
Reported
Code Editor
–
Index entries
19

Instructions

At B49

Inclusion terms

  • Fungemia NOS

Notes that also apply

Block B35-B49 instructions (Excludes2 2): printed on the block page.

Chapter 1 instructions (Includes 1, Excludes2 5, Use additional code 1): printed on the chapter 1 page.

Index entries

  • Bronchomycosis NOS → B49 [J99]
  • Fungemia NOS → B49
  • Keratomycosis → B49
  • Mycelium infection → B49
  • Mycosis, mycotic → B49
  • Pneumomycosis → B49 [J99]
  • Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute)mycotic NEC → B49
  • Cough (affected) (epidemic) (nervous)tea taster's → B49
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory)mycotic NEC → B49
  • Disease, diseasedfungus NEC → B49
  • Disease, diseasedmycotic → B49
  • Fungus, fungousdisease NOS → B49
  • Infection, infected, infective (opportunistic)fungus NOS → B49
  • Infection, infected, infective (opportunistic)mycelium NOS → B49
  • Infection, infected, infective (opportunistic)mycotic NOS → B49
  • Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)mycotic NEC → B49 [G02]
  • Myositismycotic → B49 [M63.8-]
  • Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute)in (due to)mycosis NEC → B49
  • Myositisin (due to)mycosis → B49 [M63.8-]

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

Medicare grouping and edits

CMS files for B49
CC / MCCCC
PDX exclusion list0225 (2 codes)
Appendix BMDC 18 Infectious and Parasitic Diseases, Systemic or Unspecified Sites, MS-DRG 867-869 (Other Infectious and Parasitic Diseases Diagnoses with MCC…)
Code Editor–
POAReported
HCC V28–

CC as a secondary diagnosis, not when the principal diagnosis is on its PDX exclusion list.

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

Hierarchy