ICD-10-CM Codes
O00-O9A Pregnancy, childbirth and the puerperium
O94-O9A Other obstetric conditions, not elsewhere classified
O98- Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
2021 ICD-10-CM Diagnosis Code O98.911

2021 ICD-10-CM Diagnosis Code O98.911

Unspecified maternal infectious and parasitic disease complicating pregnancy, first trimester

2016

2017

2018

2019

2020

2021

Billable/Specific Code

Maternity Dx (12-55 years)

1st Trimester (< 14 weeks)

O98.911 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Short description: Unsp maternal infec/parastc disease comp preg, first tri
The 2021 edition of ICD-10-CM O98.911 became effective on October 1, 2020.
This is the American ICD-10-CM version of O98.911 - other international versions of ICD-10 O98.911 may differ.

ICD-10-CM Coding Rules

O98.911 is applicable to maternity patients aged 12 - 55 years inclusive.
O98.911 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 O98.911 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 O98.911:

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
O98
ICD-10-CM Diagnosis Code O98
Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
Includes
- the listed conditions when complicating the pregnant state, when aggravated by the pregnancy, or as a reason for obstetric care
Type 2 Excludes
- herpes gestationis (O26.4-)
- infectious carrier state (O99.82-, O99.83-)
- obstetrical tetanus (A34)
- puerperal infection (O86.-)
- puerperal sepsis (O85)
- when the reason for maternal care is that the disease is known or suspected to have affected the fetus (O35-O36)
Use Additional
- code (Chapter 1), to identify specific infectious or parasitic disease
Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

ICD-10-CM O98.911 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 O98.911 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 O98.911

O98.8 Other maternal infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium

O98.81 Other maternal infectious and parasitic diseases complicating pregnancy

O98.811 …… first trimester

O98.812 …… second trimester

O98.813 …… third trimester

O98.819 …… unspecified trimester

O98.82 Other maternal infectious and parasitic diseases complicating childbirth

O98.83 Other maternal infectious and parasitic diseases complicating the puerperium

O98.9 Unspecified maternal infectious and parasitic disease complicating pregnancy, childbirth and the puerperium

O98.91 Unspecified maternal infectious and parasitic disease complicating pregnancy

O98.911 …… first trimester

O98.912 …… second trimester

O98.913 …… third trimester

O98.919 …… unspecified trimester

O98.92 Unspecified maternal infectious and parasitic disease complicating childbirth

O98.93 Unspecified maternal infectious and parasitic disease complicating the puerperium

O99 Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

O99.0 Anemia complicating pregnancy, childbirth and the puerperium

O99.01 Anemia complicating pregnancy

O99.011 …… first trimester

O99.012 …… second 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 O98.911

Unspecified maternal infectious and parasitic disease complicating pregnancy, first trimester

Pregnancy, childbirth and the puerperium

Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium