ICD-10 Code O26.51

Maternal hypotension syndrome, first trimester

Version 2019 Billable Code Maternity Diagnoses Diagnoses For Females Only First Trimester (0 to 13 Weeks)
ICD-10: O26.51
Short Description:Maternal hypotension syndrome, first trimester
Long Description:Maternal hypotension syndrome, first trimester

Valid for Submission

ICD-10 O26.51 is a billable code used to specify a medical diagnosis of maternal hypotension syndrome, first trimester. The code is valid for the year 2019 for the submission of HIPAA-covered transactions.

Code Classification

  • Pregnancy, childbirth and the puerperium (O00–O99)
    • Other maternal disorders predominantly related to pregnancy (O20-O29)
      • Maternal care for oth conditions predom related to pregnancy (O26)

Information for Medical Professionals

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

  • Maternity diagnoses - Maternity. Age range is 12–55 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).
  • Diagnoses for females only - Diagnoses for females only.

Diagnostic Related Groups

The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). The diagnosis code O26.51 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.

  • 817 - OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURE WITH MCC
  • 818 - OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURE WITH CC
  • 819 - OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURE WITHOUT CC/MCC

Convert O26.51 to ICD-9

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

  • 669.21 - Matern hypoten syn-deliv (Approximate Flag)
  • 669.22 - Matern hypoten-del w p/p (Approximate Flag)
  • 669.23 - Matern hypotens-antepar (Approximate Flag)
  • 669.24 - Matern hypotens-postpart (Approximate Flag)

Information for Patients


Health Problems in Pregnancy

Every pregnancy has some risk of problems. You may have problems because of a health condition you had before you got pregnant. You could also develop a condition during pregnancy. Other causes of problems during pregnancy can include being pregnant with more than one baby, a health problem in a previous pregnancy, substance abuse during pregnancy, or being over age 35. Any of these can affect your health, the health of your baby, or both.

If you have a chronic condition, you should talk to your health care provider about how to minimize your risk before you get pregnant. Once you are pregnant, you may need a health care team to monitor your pregnancy. Some common conditions that can complicate a pregnancy include

  • High blood pressure
  • Polycystic ovary syndrome
  • Kidney problems
  • Autoimmune disorders
  • Obesity
  • HIV/AIDS
  • Cancer
  • Infections

Other conditions that can make pregnancy risky can happen while you are pregnant - for example, gestational diabetes and Rh incompatibility. Good prenatal care can help detect and treat them.

Some discomforts, like nausea, back pain, and fatigue, are common during pregnancy. Sometimes it is hard to know what is normal. Call your health care provider if something is bothering or worrying you.

  • Bed rest during pregnancy (Medical Encyclopedia)
  • Hydramnios (Medical Encyclopedia)
  • Hyperemesis gravidarum (Medical Encyclopedia)
  • Insufficient cervix (Medical Encyclopedia)
  • Placenta abruptio (Medical Encyclopedia)
  • Placenta abruptio (Medical Encyclopedia)
  • Placenta previa (Medical Encyclopedia)
  • Vaginal bleeding in early pregnancy (Medical Encyclopedia)
  • Vaginal bleeding in late pregnancy (Medical Encyclopedia)
  • Vaginal bleeding in pregnancy (Medical Encyclopedia)

[Learn More]

Low Blood Pressure

Also called: Hypotension, LBP

You've probably heard that high blood pressure is a problem. Sometimes blood pressure that is too low can also cause problems.

Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps out blood into the arteries. Your blood pressure is highest when your heart beats, pumping the blood. This is called systolic pressure. When your heart is at rest, between beats, your blood pressure falls. This is the diastolic pressure. Your blood pressure reading uses these two numbers. Usually they're written one above or before the other, such as 120/80. If your blood pressure reading is 90/60 or lower, you have low blood pressure.

Some people have low blood pressure all the time. They have no symptoms and their low readings are normal for them. In other people, blood pressure drops below normal because of a medical condition or certain medicines. Some people may have symptoms of low blood pressure when standing up too quickly. Low blood pressure is a problem only if it causes dizziness, fainting or in extreme cases, shock.

NIH: National Heart, Lung, and Blood Institute

  • Low blood pressure (Medical Encyclopedia)

[Learn More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 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.