2020 ICD-10-CM Diagnosis Code R29.0

Tetany

    2016 2017 2018 2019 2020 Billable/Specific Code
  • R29.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM R29.0 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of R29.0 - other international versions of ICD-10 R29.0 may differ.
Applicable To
  • Carpopedal spasm
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as R29.0. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • hysterical tetany (
    ICD-10-CM Diagnosis Code F44.5

    Conversion disorder with seizures or convulsions

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Conversion disorder with attacks or seizures
    • Dissociative convulsions
    F44.5
    )
  • neonatal tetany (
    ICD-10-CM Diagnosis Code P71.3

    Neonatal tetany without calcium or magnesium deficiency

      2016 2017 2018 2019 2020 Billable/Specific Code Code on Newborn Record
    Applicable To
    • Neonatal tetany NOS
    P71.3
    )
  • parathyroid tetany (
    ICD-10-CM Diagnosis Code E20.9

    Hypoparathyroidism, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Parathyroid tetany
    E20.9
    )
  • post-thyroidectomy tetany (
    ICD-10-CM Diagnosis Code E89.2

    Postprocedural hypoparathyroidism

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Parathyroprival tetany
    E89.2
    )
The following code(s) above R29.0 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to R29.0:
  • R00-R99
    2020 ICD-10-CM Range R00-R99

    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

    Note
    • This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
    • Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
    • The conditions and signs or symptoms included in categories R00-R94 consist of:
    • (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
    • (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
    • (c) provisional diagnosis in a patient who failed to return for further investigation or care;
    • (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
    • (e) cases in which a more precise diagnosis was not available for any other reason;
    • (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
    Type 2 Excludes
    • abnormal findings on antenatal screening of mother (O28.-)
    • certain conditions originating in the perinatal period (P04-P96)
    • signs and symptoms classified in the body system chapters
    • signs and symptoms of breast (N63, N64.5)
    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Approximate Synonyms
  • Carpopedal spasm
  • Carpopedal spasm (hand or foot spasm)
Clinical Information
  • A disorder characterized by muscle twitches, cramps, and carpopedal spasm, and when severe, laryngospasm and seizures. This condition is associated with unstable depolarization of axonal membranes, primarily in the peripheral nervous system. Tetany usually results from hypocalcemia or reduced serum levels of magnesium that may be associated with hyperventilation; hypoparathyroidism; rickets; uremia; or other conditions. (from Adams et al., Principles of Neurology, 6th ed, p1490)
  • Hyperexcitability of nerve and muscle when the concentration of extracellular ionized calcium is decreased.
ICD-10-CM R29.0 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 640 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes with mcc
  • 641 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes without mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert R29.0 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to R29.0:
  • Type 1 Excludes: E20
    ICD-10-CM Diagnosis Code E20

    Hypoparathyroidism

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • Di George's syndrome (D82.1)
    • postprocedural hypoparathyroidism (E89.2)
    • tetany NOS (R29.0)
    • transitory neonatal hypoparathyroidism (P71.4)
  • Type 2 Excludes: R25.2
    ICD-10-CM Diagnosis Code R25.2

    Cramp and spasm

      2016 2017 2018 2019 2020 Billable/Specific Code
    Type 2 Excludes

Diagnosis Index entries containing back-references to R29.0:

ICD-10-CM Codes Adjacent To R29.0
R26.2 Difficulty in walking, not elsewhere classified
R26.8 Other abnormalities of gait and mobility
R26.81 Unsteadiness on feet
R26.89 Other abnormalities of gait and mobility
R26.9 Unspecified abnormalities of gait and mobility
R27 Other lack of coordination
R27.0 Ataxia, unspecified
R27.8 Other lack of coordination
R27.9 Unspecified lack of coordination
R29 Other symptoms and signs involving the nervous and musculoskeletal systems
R29.0 Tetany
R29.1 Meningismus
R29.2 Abnormal reflex
R29.3 Abnormal posture
R29.4 Clicking hip
R29.5 Transient paralysis
R29.6 Repeated falls
R29.7 National Institutes of Health Stroke Scale (NIHSS) score
R29.70 NIHSS score 0-9
R29.700 NIHSS score 0
R29.701 NIHSS score 1

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.