ICD-9 Code 659.73

Abnormality in fetal heart rate or rhythm, antepartum condition or complication

Not Valid for Submission

659.73 is a legacy non-billable code used to specify a medical diagnosis of abnormality in fetal heart rate or rhythm, antepartum condition or complication. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 659.73
Short Description:Abn ftl hrt rate/rhy-ant
Long Description:Abnormality in fetal heart rate or rhythm, antepartum condition or complication

Convert 659.73 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

  • O76 - Abnlt in fetal heart rate and rhythm comp labor and delivery

Code Classification

  • Complications of pregnancy, childbirth, and the puerperium (630–679)
    • Normal delivery, and other indications for care in pregnancy, labor, and delivery (650-659)
      • 659 Other indications for care or intervention related to labor and delivery and not elsewhere classified

Information for Medical Professionals

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-9 Code Edits are applicable to this code:

Synonyms

  • Maternal care for fetal bradycardia during pregnancy
  • Maternal care for fetal tachycardia during pregnancy

Information for Patients


Fetal Health and Development

A normal pregnancy lasts nine months. Each three-month period of pregnancy is called a trimester. During each trimester, the fetus grows and develops. There are specific prenatal tests to monitor both the mother's health and fetal health during each trimester.

With modern technology, health professionals can

  • Detect birth defects
  • Identify problems that may affect childbirth
  • Correct some kinds of fetal problems before the baby is born
  • Developmental disorders of the female reproductive tract
  • Fetal development
  • Intrauterine growth restriction

[Read More]

ICD-9 Footnotes

General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.