2024 ICD-10-CM Diagnosis Code O99.891

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

• Abscess of nipple
• Abscess of nipple - obstetric
• Bicornuate uterus
• Bicornuate uterus in pregnancy, childbirth and the puerperium
• Bleeding from nose
• Bone AND/OR joint disorder in mother complicating pregnancy, childbirth AND/OR puerperium
• Bone AND/OR joint disorder in mother complicating pregnancy, childbirth AND/OR puerperium
• Bone AND/OR joint disorder in mother complicating pregnancy, childbirth AND/OR puerperium
• Bone AND/OR joint disorder of back in mother complicating pregnancy, childbirth AND/OR puerperium
• Bone AND/OR joint disorder of lower extremities in mother complicating pregnancy, childbirth AND/OR puerperium
• Bone AND/OR joint disorder of pelvis in mother complicating pregnancy, childbirth AND/OR puerperium
• Congenital abnormal shape of fallopian tube
• Congenital abnormality of uterus affecting obstetric care
• Congenital abnormality of uterus in pregnancy, childbirth and the puerperium
• Congenital abnormality of uterus in pregnancy, childbirth and the puerperium
• Congenital abnormality of uterus in pregnancy, childbirth and the puerperium
• Congenital anomaly of mother complicating pregnancy
• Congenital cardiovascular disorder in mother complicating pregnancy, childbirth AND/OR puerperium
• Congenital cardiovascular disorders during pregnancy, childbirth and the puerperium
• Congenital cardiovascular disorders during pregnancy, childbirth and the puerperium
• Congenital heart disease in pregnancy
• Congenital or acquired abnormality of vagina in pregnancy, childbirth and the puerperium
• Cystocele in pregnancy, childbirth and the puerperium
• Disease of nervous system complicating pregnancy, childbirth and puerperium
• Disease of skin and subcutaneous tissue complicating pregnancy, childbirth and/or puerperium
• Disease of the respiratory system complicating pregnancy, childbirth and/or the puerperium
• Disorder of breast during pregnancy, childbirth and/or puerperium
• Fat embolism - obstetric
• Fat embolism - obstetric
• Fetal disorder due to maternal autoimmune disease
• Fetal disorder due to maternal disorder of urinary tract
• Fetal disorder due to maternal renal disease
• Galactorrhea in pregnancy
• Galactorrhea in pregnancy and the puerperium with antenatal complication
• Heart disease in mother complicating pregnancy, childbirth AND/OR puerperium
• Heart disease in mother complicating pregnancy, childbirth AND/OR puerperium
• Hypertensive heart disease in obstetric context
• Hypertensive renal disease in obstetric context
• Idiopathic osteoporosis
• Idiopathic osteoporosis in pregnancy
• Increased lactation
• Mastitis - obstetric
• Maternal perinatal epistaxis
• Maternal perinatal sensorineural hearing loss
• Mental disorders during pregnancy, childbirth and the puerperium
• Musculoskeletal problem in pregnancy
• Obstetric anesthesia problems
• Obstetric anesthesia with central nervous system complication with antenatal problem
• Obstetric anesthesia with central nervous system complications
• Obstetric blood-clot pulmonary embolism with antenatal complication
• Obstetric breast abscess
• Obstetric breast infections
• Obstetric disorder of uterus
• Obstetric pulmonary thromboembolism
• Obstetric pyemic and septic pulmonary embolism
• Obstetrical blood clot embolism
• Obstetrical blood clot embolism
• Obstetrical pulmonary fat embolism
• Orthopedic disorders during pregnancy, childbirth and the puerperium
• Orthopedic disorders during pregnancy, childbirth and the puerperium
• Orthopedic disorders during pregnancy, childbirth and the puerperium
• Pelvic mass in pregnancy
• Pelvic soft tissue abnormality in pregnancy, childbirth and the puerperium
• Pelvic soft tissue abnormality in pregnancy, childbirth and the puerperium
• Pelvic soft tissue abnormality in pregnancy, childbirth and the puerperium with antenatal problem
• Perinatal depression
• Persistent hymen in pregnancy, childbirth and the puerperium
• Polyp of cervix in pregnancy, childbirth and the puerperium
• Pre-existing maternal disease complicating pregnancy
• Pregnancy with orthopedic problem
• Pulmonary fat embolism
• Pulmonary fat embolism
• Pulmonary thromboembolism
• Pulmonary thromboembolism
• Regional osteoporosis
• Rigid perineum in pregnancy, childbirth and the puerperium
• Rubella in mother complicating pregnancy, childbirth AND/OR puerperium
• Septic embolus of artery
• Septic pulmonary embolism
• Transient osteoporosis
• Transient osteoporosis of hip
• Transient osteoporosis of hip in pregnancy
• Tumor of uterine body affecting obstetric care
• Tumor of uterine body in pregnancy, childbirth and the puerperium
• Tumor of uterine body in pregnancy, childbirth and the puerperium
• Uterine fibroid affecting obstetric care
• Uterine fibroids in pregnancy, childbirth and the puerperium
• Vulval abnormality in pregnancy, childbirth and the puerperium
• Vulval abnormality in pregnancy, childbirth and the puerperium

Clinical Information

• Bicornuate Uterus

  a congenital uterine anomaly in which the uterus is divided into two uterine horns with a significant cleft at the uterine fundus due to partial fusion of the mullerian ducts. bicornuate uterus is sometimes associated with a longitudinal vaginal septum and abnormal development of renal tracts.

Code Edits

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

• Maternity diagnoses - The Medicare Code Editor detects inconsistencies in maternity cases by checking a patient's age and any diagnosis on the patient's record. The maternity code edits apply to patients age ange is 9–64 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).
• Diagnoses for females only - The Medicare Code Editor detects inconsistencies between a patient’s sex and any diagnosis on the patient’s record, these edits apply to FEMALES only .

O99.891 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Replacement Code

O99891 replaces the following previously assigned ICD-10-CM code(s):

• O99.89 - Oth diseases and conditions compl preg/chldbrth

Code History

• FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
• FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
• FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
• FY 2021 - Code Added, effective from 10/1/2020 through 9/30/2021