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ICD-10-CM Code N91.5
Oligomenorrhea, unspecified

BILLABLE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
Female Only
Female Only
Code is only used for female patients.
| ICD-10 from 2011 - 2016

N91.5 is a billable ICD code used to specify a diagnosis of oligomenorrhea, unspecified. A 'billable code' is detailed enough to be used to specify a medical diagnosis.


The ICD code N915 is used to code Oligomenorrhea

Oligomenorrhea (or oligomenorrhoea) is infrequent (or, in occasional usage, very light) menstruation. More strictly, it is menstrual periods occurring at intervals of greater than 35 days, with only four to nine periods in a year. Also, menstrual periods should have been regularly established previously before the development of infrequent flow. The duration of such events may vary.

Specialty: Urology
ICD 9 Code: 626.1
Source: Wikipedia

Coding Notes for N91.5 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Hypomenorrhea NOS

MS-DRG Mapping

  • DRG Group #742-743 - Uterine and adnexa procedure for non-malignancy with CC or MCC.
  • DRG Group #742-743 - Uterine and adnexa procedure for non-malignancy without CC or MCC.
  • DRG Group #760-761 - Menstrual and other female reproductive system disorders with CC or MCC.
  • DRG Group #760-761 - Menstrual and other female reproductive system disorders without CC or MCC.

ICD-10-CM Alphabetical Index References for 'N91.5 - Oligomenorrhea, unspecified'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code N91.5. Click on any term below to browse the alphabetical index.

Oligomenorrhea (N91.5)

Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)

Scanty or infrequent menstruation (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code N91.5 and a single ICD9 code, 626.1 is an approximate match for comparison and conversion purposes.


Parent Code: N91 - Absent, scanty and rare menstruation

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/N915