ICD-10-CM Code D74
Methemoglobinemia
Non-Billable Code
Non-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.ICD Code D74 is a non-billable code. To code a diagnosis of this type, you must use one of the three child codes of D74 that describes the diagnosis 'methemoglobinemia' in more detail.
- D74 Methemoglobinemia NON-BILLABLE
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- BILLABLE D74.0 Congenital methemoglobinemia
- BILLABLE D74.8 Other methemoglobinemias
- BILLABLE D74.9 Methemoglobinemia, unspecified
The ICD code D74 is used to code Methemoglobinemia
Methemoglobinemia (or methaemoglobinaemia) is a disorder characterized by the presence of a higher than normal level of methemoglobin (metHb, i.e., ferric [Fe3+] rather than ferrous [Fe2+] haemoglobin) in the blood. Methemoglobin is a form of hemoglobin that contains ferric [Fe3+] iron and has a decreased ability to bind oxygen. However, the ferrous iron has an increased affinity for bound oxygen. The binding of oxygen to methemoglobin results in an increased affinity of oxygen to the three other heme sites (that are still ferrous) within the same tetrameric hemoglobin unit. This leads to an overall reduced ability of the red blood cell to release oxygen to tissues, with the associated oxygen–hemoglobin dissociation curve therefore shifted to the left. When methemoglobin concentration is elevated in red blood cells, tissue hypoxia can occur.
| Specialty: | Toxicology |
| MeSH Code: | D008708 |
| ICD 9 Code: | 289.7 |
ICD-10-CM Alphabetical Index References for 'D74 - Methemoglobinemia'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code D74. Click on any term below to browse the alphabetical index.