2027 ICD-10-CM Diagnosis Code O92.79Other disorders of lactation
ICD-10-CM Codes›O00-O9A›O85-O92›O92
- Billable — Valid for Submission
- Not Chronic
O92.79 is a billable ICD-10-CM diagnosis code for other disorders of lactation. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 769, 776. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complications specified during the puerperium.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for O92.79.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Breast engorgement in pregnancy, the puerperium or lactation
- Difficulty establishing breastfeeding
- Difficulty performing breastfeeding
- Difficulty positioning baby at breast for feeding
- Does not perform breastfeeding
- Does not position baby at breast for feeding
- Dysphoric milk ejection reflex
- Dysphoric mood
- Engorgement of breasts
- Engorgement of breasts associated with childbirth
- Finding related to ability to perform breastfeeding
- Finding related to ability to position baby at breast for feeding
- Galactocele associated with childbirth
- Increased lactation
- Lactating adenoma of breast
- Lactation not established
- Lactation problem
- Lactocele
- Milk engorgement of breast
- Pain when milk coming in
- Painful lactation
- Unable to perform breastfeeding
- Unable to position baby at breast for feeding
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to O92.79: its own notes plus those printed at block O85-O92 and Chapter 15. A note printed at a category, block or chapter applies to every code under it.
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.
- Puerperal galactocele
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 O92.79, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming O92.79: they are not reported together with it, unless the two conditions are unrelated.
- Z39.1 Encounter for care and examination of lactating motherdisorders of lactation (O92.-) names O92.-, which includes this code
- Block N60-N65 Disorders of breast
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disorder (of) See Also: Disease;
specified NEC O92.79
lactation disorder NEC O92.79
lactation NEC O92.79
Retention See Also: Retained;
milk (puerperal, postpartum) O92.79
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Breastfeeding
Breastfeeding offers many benefits to your baby. Breast milk contains the right balance of nutrients to help your infant grow into a strong and healthy toddler. Some of the nutrients in breast milk also help protect your infant against some common childhood illnesses and infections. It may also help your health.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert O92.79 to ICD-9-CMHistory
Code HistoryHistory
Questions About O92.79Overview
What is the ICD-10 code for other disorders of lactation?
The ICD-10-CM code for other disorders of lactation is O92.79 (sometimes written as O9279). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is O92.79 (Other and unspecified disorders of lactation) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other disorders of lactation on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does O92.79 group to?
When other disorders of lactation 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.
Who can O92.79 be reported for?
The Medicare Code Editor checks other disorders of lactation against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.
What is the ICD-9 equivalent of O92.79?
Under the General Equivalence Mappings, other disorders of lactation converts to ICD-9-CM 676.82 (lactat dis NEC-del w p/p) and 676.84 (lactat dis NEC-postpart). The mapping is approximate, so confirm the match fits the documentation.
