2027 ICD-10-CM Diagnosis Code O87.1Deep phlebothrombosis in the puerperium
ICD-10-CM Codes›O00-O9A›O85-O92›O87
- Billable — Valid for Submission
- MCC — Major Complication or Comorbidity
- Not Chronic
O87.1 is a billable ICD-10-CM diagnosis code for deep phlebothrombosis in the puerperium. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 769, 776. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. It does not count, however, when the principal diagnosis is one of 250 closely related codes. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). Coders also document this condition as deep venous thrombosis in puerperium. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Acute phlebitis; thrombophlebitis and thromboembolism and Complications specified during the puerperium.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for O87.1.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Deep venous thrombosis in puerperium
- Pelvic thrombophlebitis in puerperium
- Phlebitis in puerperium
- Phlegmasia alba dolens
- Phlegmasia alba dolens in puerperium
- Postpartum acute deep vein thrombosis
- Postpartum chronic deep vein thrombosis
- Thrombophlebitis in puerperium
- Thrombophlebitis of pelvic vein
- White discoloration of skin
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to O87.1: its own notes plus those printed at O87, block O85-O92, and Chapter 15. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- venous complications in labor, delivery and the puerperium
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Deep vein thrombosis, postpartum
- Pelvic thrombophlebitis, postpartum
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- supervision of normal pregnancy (Z34.-)
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Notes
General instructions on how these codes are used.
- 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
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name O87.1, its category, or a range that includes it.
Excludes2 2
These codes carry an Excludes2 note naming O87.1: its condition is not part of those codes, and both may be reported when the patient has both.
- O22 Venous complications and hemorrhoids in pregnancyvenous complications and hemorrhoids of childbirth and the puerperium (O87.-) names O87.-, which includes this code
- O99.4 Diseases of the circulatory system complicating pregnancy, childbirth and the puerperiumvenous complications and cerebrovenous sinus thrombosis in labor, childbirth and the puerperium (O87.-) names O87.-, which includes this code
Code First 2
These codes say to code first a condition named in the note, and O87.1 is one of the conditions named.
- I80 Phlebitis and thrombophlebitisphlebitis and thrombophlebitis complicating pregnancy, childbirth and the puerperium (O22.-, O87.-) names O87.-, which includes this code
- I82 Other venous embolism and thrombosispregnancy, childbirth and the puerperium (O22.-, O87.-) names O87.-, which includes this code
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Milk-leg (deep vessels) (nonpuerperal) See: Embolism, vein, lower extremity;
alba dolens O87.1
Puerperal, puerperium (complicated by, complications)
milk leg O87.1
phlebothrombosis, deep O87.1
phlegmasia alba dolens O87.1
white leg O87.1
White See Also: condition;
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Deep Vein Thrombosis
Deep vein thrombosis, or DVT, is a blood clot that forms in a vein deep in the body. Most deep vein clots occur in the lower leg or thigh. If the vein swells, the condition is called thrombophlebitis. A deep vein thrombosis can break loose and cause a serious problem in the lung, called a pulmonary embolism.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert O87.1 to ICD-9-CMHistory
Code HistoryHistory
Questions About O87.1Overview
What is the ICD-10 code for deep phlebothrombosis in the puerperium?
The ICD-10-CM code for deep phlebothrombosis in the puerperium is O87.1 (sometimes written as O871). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is O87.1 (Venous complications and hemorrhoids in the puerperium) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report deep phlebothrombosis in the puerperium on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does O87.1 group to?
When deep phlebothrombosis in the puerperium is the principal diagnosis on an inpatient stay, it groups to MS-DRG 769, 776, with relative weights from 0.6718 to 1.6666 depending on complications. Higher weights mean higher Medicare reimbursement.
Is O87.1 a CC or MCC?
CMS lists O87.1 as an MCC (major complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family. It does not count when the principal diagnosis is one of the 250 closely related codes in its exclusion list.
Who can O87.1 be reported for?
The Medicare Code Editor checks deep phlebothrombosis in the puerperium against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.
