ICD-10-CM 2027
ICD-10 code for Pseudotetany
From the official ICD-10-CM alphabetic index entry “Pseudotetany”. Page updated September 29, 2026.
About coding Pseudotetany
The ICD-10-CM code for Pseudotetany is R29.0 (Tetany). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on R29.0.
Within R29 (other symptoms and signs involving the nervous and musculoskeletal systems), R29.0 is specifically for tetany. Related codes cover Meningismus (R29.1), abnormal reflex (R29.2), abnormal posture (R29.3), Clicking hip (R29.4), transient paralysis (R29.5), repeated falls (R29.6), National Institutes of Health Stroke Scale (NIHSS) score (R29.7), other symptoms and signs involving the nervous and musculoskeletal systems (R29.8) and 1 more.
Don't report R29.0 together with the conditions in its Excludes1 note: hysterical tetany (F44.5), neonatal tetany (P71.3), parathyroid tetany (E20.9) and post-thyroidectomy tetany (E89.2).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
More specific Pseudotetany codes (official index)
- hysterical F44.5 — Conversion disorder with seizures or convulsions
Don't confuse with (Excludes1 for R29.0)
Common questions about Pseudotetany ICD-10 codes
What is the ICD-10 code for Pseudotetany?
- R29.0 — Tetany. More specific codes apply when the documentation supports them: F44.5.
What is the ICD-10 code for hysterical pseudotetany?
- F44.5 — Conversion disorder with seizures or convulsions.
Is R29.0 billable?
- Yes. R29.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R29.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R29.0 as a principal diagnosis.
Is R29.0 a CC or MCC?
- R29.0 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.