ICD-10-CM 2027
ICD-10 code for Singultus
From the official ICD-10-CM alphabetic index entry “Singultus”. Page updated September 29, 2026.
About coding Singultus
The ICD-10-CM code for Singultus is R06.6 (Hiccough). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on R06.6.
Within R06 (abnormalities of breathing), R06.6 is specifically for Hiccough. Related codes cover dyspnea (R06.0), Stridor (R06.1), Wheezing (R06.2), periodic breathing (R06.3), Hyperventilation (R06.4), mouth breathing (R06.5), Sneezing (R06.7), other abnormalities of breathing (R06.8) and 1 more.
Don't report R06.6 together with the conditions in its Excludes1 note: psychogenic hiccough (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 Singultus codes (official index)
- epidemicus B33.0 — Epidemic myalgia
Don't confuse with (Excludes1 for R06.6)
- psychogenic hiccough (F45.8)
Common questions about Singultus ICD-10 codes
What is the ICD-10 code for Singultus?
- R06.6 — Hiccough. More specific codes apply when the documentation supports them: B33.0.
What is the ICD-10 code for epidemicus singultus?
- B33.0 — Epidemic myalgia.
Is R06.6 billable?
- Yes. R06.6 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R06.6 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R06.6 as a principal diagnosis.
Is R06.6 a CC or MCC?
- No. R06.6 is neither a CC nor an MCC under MS-DRG v44.0.