ICD-10-CM Codes
O00-O9A Pregnancy, childbirth and the puerperium
O20-O29 Other maternal disorders predominantly related to pregnancy
O26- Maternal care for other conditions predominantly related to pregnancy
2021 ICD-10-CM Diagnosis Code O26.851

2021 ICD-10-CM Diagnosis Code O26.851

Spotting complicating pregnancy, first trimester

2016

2017

2018

2019

2020

2021

Billable/Specific Code

Maternity Dx (12-55 years)

1st Trimester (< 14 weeks)

O26.851 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2021 edition of ICD-10-CM O26.851 became effective on October 1, 2020.
This is the American ICD-10-CM version of O26.851 - other international versions of ICD-10 O26.851 may differ.

ICD-10-CM Coding Rules

O26.851 is applicable to maternity patients aged 12 - 55 years inclusive.
O26.851 is applicable to mothers in the first trimester of pregnancy, which is defined as less than 14 weeks since the first day of the last menstrual period.

The following code(s) above O26.851 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 O26.851:

O00-O9A
2021 ICD-10-CM Range O00-O9A
Pregnancy, childbirth and the puerperium
Note
- CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
- Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
- Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
- 1st trimester- less than 14 weeks 0 days
- 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
- 3rd trimester- 28 weeks 0 days until delivery
Type 1 Excludes
- supervision of normal pregnancy (Z34.-)
Type 2 Excludes
- mental and behavioral disorders associated with the puerperium (F53.-)
- obstetrical tetanus (A34)
- postpartum necrosis of pituitary gland (E23.0)
- puerperal osteomalacia (M83.0)
Use Additional
- code from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Pregnancy, childbirth and the puerperium
O20-O29
2021 ICD-10-CM Range O20-O29
Other maternal disorders predominantly related to pregnancy
Type 2 Excludes
- maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
- maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)
Other maternal disorders predominantly related to pregnancy

ICD-10-CM O26.851 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):

817 Other antepartum diagnoses with o.r. Procedures with mcc
818 Other antepartum diagnoses with o.r. Procedures with cc
819 Other antepartum diagnoses with o.r. Procedures without cc/mcc
831 Other antepartum diagnoses without o.r. Procedures with mcc
832 Other antepartum diagnoses without o.r. Procedures with cc
833 Other antepartum diagnoses without o.r. Procedures without cc/mcc

Convert O26.851 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
2021 (effective 10/1/2020): No change

ICD-10-CM Codes Adjacent To O26.851

O26.831 …… first trimester

O26.832 …… second trimester

O26.833 …… third trimester

O26.839 …… unspecified trimester

O26.84 Uterine size-date discrepancy complicating pregnancy

O26.841 Uterine size-date discrepancy, first trimester

O26.842 Uterine size-date discrepancy, second trimester

O26.843 Uterine size-date discrepancy, third trimester

O26.849 Uterine size-date discrepancy, unspecified trimester

O26.85 Spotting complicating pregnancy

O26.851 …… first trimester

O26.852 …… second trimester

O26.853 …… third trimester

O26.859 …… unspecified trimester

O26.86 Pruritic urticarial papules and plaques of pregnancy (PUPPP)

O26.87 Cervical shortening

O26.872 …… second trimester

O26.873 …… third trimester

O26.879 …… unspecified trimester

O26.89 Other specified pregnancy related conditions

O26.891 …… first trimester

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

2021 ICD-10-CM Diagnosis Code O26.851

Spotting complicating pregnancy, first trimester

Pregnancy, childbirth and the puerperium

Other maternal disorders predominantly related to pregnancy