ICD-10-CM 2027
ICD-10 code for Hyperventilation tetany
From the official ICD-10-CM alphabetic index entry “Tetany (due to) › hyperventilation”. Page updated September 29, 2026.
About coding Hyperventilation tetany
The ICD-10-CM code for Hyperventilation tetany is R06.4 (Hyperventilation). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on R06.4.
Within R06 (abnormalities of breathing), R06.4 is specifically for Hyperventilation. Related codes cover dyspnea (R06.0), Stridor (R06.1), Wheezing (R06.2), periodic breathing (R06.3), mouth breathing (R06.5), Hiccough (R06.6), Sneezing (R06.7), other abnormalities of breathing (R06.8) and 1 more.
Don't report R06.4 together with the conditions in its Excludes1 note: psychogenic hyperventilation (F45.8).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific Hyperventilation tetany codes (official index)
- hysterical F44.5 — Conversion disorder with seizures or convulsions
Don't confuse with (Excludes1 for R06.4)
- psychogenic hyperventilation (F45.8)
Common questions about Hyperventilation tetany ICD-10 codes
What is the ICD-10 code for Hyperventilation tetany?
- R06.4 — Hyperventilation. More specific codes apply when the documentation supports them: F44.5.
What is the ICD-10 code for hysterical hyperventilation tetany?
- F44.5 — Conversion disorder with seizures or convulsions.
Is R06.4 billable?
- Yes. R06.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R06.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R06.4 as a principal diagnosis.
Is R06.4 a CC or MCC?
- No. R06.4 is neither a CC nor an MCC under MS-DRG v44.0.