DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

D74 Methemoglobinemia

  • Header · not billable

D74 is not billable. The category heads 3 billable codes in FY2027: the 3 codes directly below it.

Index → code

  • Methemoglobinemia → D74.9
  • Nitrosohemoglobinemia → D74.8
  • Stokvis (-Talma) disease → D74.8

Where it sits

  1. Chapter 3 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
  2. D70-D77 Other disorders of blood and blood-forming organs (D70-D77)
  3. D74 Methemoglobinemia
Billable codes
3
Subdivisions
3
CC / MCC codes
3 / 0
HCC V28 codes
0
New FY2027
0
Index entries
16

Codes in D74

  1. D74.0
    Congenital methemoglobinemia
    BillableCC
    Inclusion terms 3

    Inclusion terms

    • Congenital NADH-methemoglobin reductase deficiency
    • Hemoglobin-M [Hb-M] disease
    • Methemoglobinemia, hereditary
  2. D74.8
    Other methemoglobinemias
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • Acquired methemoglobinemia (with sulfhemoglobinemia)
    • Toxic methemoglobinemia
  3. D74.9
    Methemoglobinemia, unspecified
    BillableCC

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

Notes that also apply

Chapter 3 instructions (Excludes2 9): printed on the chapter 3 page.

Index entries

  • Nitrosohemoglobinemia → D74.8
  • Stokvis (-Talma) disease → D74.8
  • Sulfhemoglobinemia, sulphemoglobinemia (acquired) (with methemoglobinemia) → D74.8
  • Methemoglobinemia → D74.9
  • Deficiency, deficientNADH diaphorase or reductase (congenital) → D74.0
  • Deficiency, deficientNADH-methemoglobin reductase (congenital) → D74.0
  • Disease, diseaseddiaphorase deficiency → D74.0
  • Methemoglobinemiacongenital → D74.0
  • Methemoglobinemiaenzymatic (congenital) → D74.0
  • MethemoglobinemiaHb M disease → D74.0
  • Methemoglobinemiahereditary → D74.0
  • Cyanosisenterogenous → D74.8
  • Methemoglobinemiaacquired (with sulfhemoglobinemia) → D74.8
  • Methemoglobinemiatoxic → D74.8
  • Sensitive, sensitivitymethemoglobin → D74.8
  • Disease, diseasedhemoglobin or HbM → D74.0

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

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