ICD-10-CM Codes
O00-O9A Pregnancy, childbirth and the puerperium
O85-O92 Complications predominantly related to the puerperium
O85- Puerperal sepsis
2021 ICD-10-CM Diagnosis Code O85

2021 ICD-10-CM Diagnosis Code O85

Puerperal sepsis

2016

2017

2018

2019

2020

2021

Billable/Specific Code

Maternity Dx (12-55 years)

Female Dx

O85 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 O85 became effective on October 1, 2020.
This is the American ICD-10-CM version of O85 - other international versions of ICD-10 O85 may differ.

ICD-10-CM Coding Rules

O85 is applicable to maternity patients aged 12 - 55 years inclusive.
O85 is applicable to female patients.

Applicable To

Postpartum sepsis
Puerperal peritonitis
Puerperal pyemia

Use Additional

Use Additional Help

Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.

code (B95-B97
ICD-10-CM Range B95-B97
Bacterial and viral infectious agents
Note
- These categories are provided for use as supplementary or additional codes to identify the infectious agent(s) in diseases classified elsewhere.
- B95 Streptococcus, Staphylococcus, and Enter...
- B96 Other bacterial agents as the cause of d...
- B97 Viral agents as the cause of diseases cl...
), to identify infectious agent

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as O85. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

fever of unknown origin following delivery (
ICD-10-CM Diagnosis Code O86.4
Pyrexia of unknown origin following delivery
Applicable To
- Puerperal infection NOS following delivery
- Puerperal pyrexia NOS following delivery
Type 2 Excludes
- pyrexia during labor (O75.2)
O86.4
)
genital tract infection following delivery (
ICD-10-CM Diagnosis Code O86.1
Other infection of genital tract following delivery
O86.1-
)
obstetric pyemic and septic embolism (
ICD-10-CM Diagnosis Code O88.3
Obstetric pyemic and septic embolism
O88.3-
)
puerperal septic thrombophlebitis (
ICD-10-CM Diagnosis Code O86.81
Puerperal septic thrombophlebitis
O86.81
)
urinary tract infection following delivery (
ICD-10-CM Diagnosis Code O86.2
Urinary tract infection following delivery
O86.2-
)

Type 2 Excludes

Type 2 Excludes Help

A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (O85) and the excluded code together.

sepsis during labor (
ICD-10-CM Diagnosis Code O75.3
Other infection during labor
Applicable To
- Sepsis during labor
Use Additional
- code (B95-B97), to identify infectious agent
O75.3
)

The following code(s) above O85 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 O85:

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
O85-O92
2021 ICD-10-CM Range O85-O92
Complications predominantly related to the puerperium
Type 2 Excludes
- mental and behavioral disorders associated with the puerperium (F53.-)
- obstetrical tetanus (A34)
- puerperal osteomalacia (M83.0)
Complications predominantly related to the puerperium

Approximate Synonyms

Postpartum sepsis
Puerperal peritonitis
Puerperal peritonitis (inflammation of abdominal lining)
Puerperal sepsis, postpartum (after childbirth)
Sepsis during labor
Sepsis in childbirth
Sepsis in childbirth (whole body reaction to serious infection)

ICD-10-CM O85 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):

769 Postpartum and post abortion diagnoses with o.r. Procedure
776 Postpartum and post abortion diagnoses without o.r. Procedure

Convert O85 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

Code annotations containing back-references to O85:

Code First: R65.2

ICD-10-CM Diagnosis Code R65.2
Severe sepsis
Applicable To
- Infection with associated acute organ dysfunction
- Sepsis with acute organ dysfunction
- Sepsis with multiple organ dysfunction
- Systemic inflammatory response syndrome due to infectious process with acute organ dysfunction
Code First
- underlying infection, such as:
- infection following a procedure (T81.4-)
- infections following infusion, transfusion and therapeutic injection (T80.2-)
- puerperal sepsis (O85)
- sepsis following complete or unspecified spontaneous abortion (O03.87)
- sepsis following ectopic and molar pregnancy (O08.82)
- sepsis following incomplete spontaneous abortion (O03.37)
- sepsis following (induced) termination of pregnancy (O04.87)
- sepsis NOS (A41.9)
Use Additional
- code to identify specific acute organ dysfunction, such as:
- acute kidney failure (N17.-)
- acute respiratory failure (J96.0-)
- critical illness myopathy (G72.81)
- critical illness polyneuropathy (G62.81)
- disseminated intravascular coagulopathy [DIC] (D65)
- encephalopathy (metabolic) (septic) (G93.41)
- hepatic failure (K72.0-)
Type 1 Excludes: A40
, A41
, N71
, K65

ICD-10-CM Diagnosis Code A40
Streptococcal sepsis
Code First
- postprocedural streptococcal sepsis (T81.4-)
- streptococcal sepsis during labor (O75.3)
- streptococcal sepsis following abortion or ectopic or molar pregnancy (O03-O07, O08.0)
- streptococcal sepsis following immunization (T88.0)
- streptococcal sepsis following infusion, transfusion or therapeutic injection (T80.2-)
Type 1 Excludes
- neonatal (P36.0-P36.1)
- puerperal sepsis (O85)
- sepsis due to Streptococcus, group D (A41.81)
ICD-10-CM Diagnosis Code A41
Other sepsis
Code First
- postprocedural sepsis (T81.4-)
- sepsis during labor (O75.3)
- sepsis following abortion, ectopic or molar pregnancy (O03-O07, O08.0)
- sepsis following immunization (T88.0)
- sepsis following infusion, transfusion or therapeutic injection (T80.2-)
Type 1 Excludes
- bacteremia NOS (R78.81)
- neonatal (P36.-)
- puerperal sepsis (O85)
- streptococcal sepsis (A40.-)
Type 2 Excludes
- sepsis (due to) (in) actinomycotic (A42.7)
- sepsis (due to) (in) anthrax (A22.7)
- sepsis (due to) (in) candidal (B37.7)
- sepsis (due to) (in) Erysipelothrix (A26.7)
- sepsis (due to) (in) extraintestinal yersiniosis (A28.2)
- sepsis (due to) (in) gonococcal (A54.86)
- sepsis (due to) (in) herpesviral (B00.7)
- sepsis (due to) (in) listerial (A32.7)
- sepsis (due to) (in) melioidosis (A24.1)
- sepsis (due to) (in) meningococcal (A39.2-A39.4)
- sepsis (due to) (in) plague (A20.7)
- sepsis (due to) (in) tularemia (A21.7)
- toxic shock syndrome (A48.3)
ICD-10-CM Diagnosis Code N71
Inflammatory disease of uterus, except cervix
Includes
- endo (myo) metritis
- metritis
- myometritis
- pyometra
- uterine abscess
Type 1 Excludes
- hyperplastic endometritis (N85.0-)
- infection of uterus following delivery (O85, O86.-)
Use Additional
- code (B95-B97), to identify infectious agent
ICD-10-CM Diagnosis Code K65
Peritonitis
Code Also
- if applicable diverticular disease of intestine (K57.-)
Type 1 Excludes
- acute appendicitis with generalized peritonitis (K35.2-)
- aseptic peritonitis (T81.6)
- benign paroxysmal peritonitis (E85.0)
- chemical peritonitis (T81.6)
- gonococcal peritonitis (A54.85)
- neonatal peritonitis (P78.0-P78.1)
- pelvic peritonitis, female (N73.3-N73.5)
- periodic familial peritonitis (E85.0)
- peritonitis due to talc or other foreign substance (T81.6)
- peritonitis in chlamydia (A74.81)
- peritonitis in diphtheria (A36.89)
- peritonitis in syphilis (late) (A52.74)
- peritonitis in tuberculosis (A18.31)
- peritonitis with or following abortion or ectopic or molar pregnancy (O00-O07, O08.0)
- peritonitis with or following appendicitis (K35.-)
- puerperal peritonitis (O85)
- retroperitoneal infections (K68.-)
Use Additional
- code (B95-B97), to identify infectious agent, if known
Type 2 Excludes: O75
, O98

ICD-10-CM Diagnosis Code O75
Other complications of labor and delivery, not elsewhere classified
Type 2 Excludes
- puerperal (postpartum) infection (O86.-)
- puerperal (postpartum) sepsis (O85)
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

Diagnosis Index entries containing back-references to O85:

Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
ICD-10-CM Diagnosis Code L02.91
Cutaneous abscess, unspecified
- peritoneum, peritoneal (perforated) (ruptured) K65.1
  ICD-10-CM Diagnosis Code K65.1
  Peritoneal abscess
  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  Applicable To
  Abdominopelvic abscess
  Abscess (of) omentum
  Abscess (of) peritoneum
  Mesenteric abscess
  Retrocecal abscess
  Subdiaphragmatic abscess
  Subhepatic abscess
  Subphrenic abscess
  - puerperal, postpartum, childbirth O85
Infection, infected, infective (opportunistic) B99.9
ICD-10-CM Diagnosis Code B99.9
Unspecified infectious disease
- major
  - puerperal, postpartum, childbirth O85
- puerperal O86.4
  ICD-10-CM Diagnosis Code O86.4
  Pyrexia of unknown origin following delivery
  2016 2017 2018 2019 2020 2021 Billable/Specific Code Maternity Dx (12-55 years)
  Applicable To
  Puerperal infection NOS following delivery
  Puerperal pyrexia NOS following delivery
  Type 2 Excludes
  pyrexia during labor (O75.2)
  - major or generalized O85
Pelviperitonitis - see also Peritonitis, pelvic
- puerperal O85
Peritonitis (adhesive) (bacterial) (fibrinous) (hemorrhagic) (idiopathic) (localized) (perforative) (primary) (with adhesions) (with effusion) K65.9
ICD-10-CM Diagnosis Code K65.9
Peritonitis, unspecified
Applicable To
Bacterial peritonitis NOS
- puerperal, postpartum, childbirth O85
Puerperal, puerperium (complicated by, complications)
- abscess
  - peritoneum O85
- fever (of unknown origin) O86.4
  ICD-10-CM Diagnosis Code O86.4
  Pyrexia of unknown origin following delivery
  2016 2017 2018 2019 2020 2021 Billable/Specific Code Maternity Dx (12-55 years)
  Applicable To
  Puerperal infection NOS following delivery
  Puerperal pyrexia NOS following delivery
  Type 2 Excludes
  pyrexia during labor (O75.2)
  - septic O85
- infection O86.4
  ICD-10-CM Diagnosis Code O86.4
  Pyrexia of unknown origin following delivery
  2016 2017 2018 2019 2020 2021 Billable/Specific Code Maternity Dx (12-55 years)
  Applicable To
  Puerperal infection NOS following delivery
  Puerperal pyrexia NOS following delivery
  Type 2 Excludes
  pyrexia during labor (O75.2)
  - generalized O85
  - peritoneum O85
- metroperitonitis O85
- parametritis O85
- pelviperitonitis O85
- peritoneal infection O85
- peritonitis O85 (pelvic)
- pyemia O85
- pyohemia O85
- salpingoperitonitis O85
- sepsis O85 (pelvic)
- sepsis O85
Pyemia, pyemic (fever) (infection) (purulent) - see also Sepsis
- puerperal, postpartum, childbirth O85
Sepsis (generalized) (unspecified organism) A41.9
ICD-10-CM Diagnosis Code A41.9
Sepsis, unspecified organism
Applicable To
Septicemia NOS
- pelvic, puerperal, postpartum, childbirth O85
- puerperal, postpartum, childbirth O85 (pelvic)

ICD-10-CM Codes Adjacent To O85

O75.89 Other specified complications of labor and delivery

O75.9 Complication of labor and delivery, unspecified

O76 Abnormality in fetal heart rate and rhythm complicating labor and delivery

O77 Other fetal stress complicating labor and delivery

O77.0 Labor and delivery complicated by meconium in amniotic fluid

O77.1 Fetal stress in labor or delivery due to drug administration

O77.8 Labor and delivery complicated by other evidence of fetal stress

O77.9 Labor and delivery complicated by fetal stress, unspecified

O80 Encounter for full-term uncomplicated delivery

O82 Encounter for cesarean delivery without indication

O85 Puerperal sepsis

O86 Other puerperal infections

O86.0 Infection of obstetric surgical wound

O86.00 …… unspecified

O86.01 …… superficial incisional site

O86.02 …… deep incisional site

O86.03 …… organ and space site

O86.04 Sepsis following an obstetrical procedure

O86.09 …… other surgical site

O86.1 Other infection of genital tract following delivery

O86.11 Cervicitis following delivery

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 O85

Puerperal sepsis

Bacterial and viral infectious agents

Pyrexia of unknown origin following delivery

Other infection of genital tract following delivery

Obstetric pyemic and septic embolism

Puerperal septic thrombophlebitis

Urinary tract infection following delivery

Other infection during labor

Pregnancy, childbirth and the puerperium

Complications predominantly related to the puerperium

Severe sepsis

Streptococcal sepsis

Other sepsis

Inflammatory disease of uterus, except cervix

Peritonitis

Other complications of labor and delivery, not elsewhere classified

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

Cutaneous abscess, unspecified

Peritoneal abscess

Unspecified infectious disease

Pyrexia of unknown origin following delivery

Peritonitis, unspecified

Pyrexia of unknown origin following delivery

Pyrexia of unknown origin following delivery

Sepsis, unspecified organism