2027 ICD-10-CM Diagnosis Code M91.30Pseudocoxalgia, unspecified hip

ICD-10-CM Codes›M00–M99›M91-M94›M91

ICD-10-CM M91.30
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M91.30 is a billable ICD-10-CM diagnosis code for pseudocoxalgia, unspecified hip. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 553 through 554. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified bone disease and musculoskeletal deformities.

Code Identity

ICD-10-CM Code
M91.30
Billable Status
Yes — Valid for Submission
Code Describes
Pseudocoxalgia, unspecified hip
Short Description
Pseudocoxalgia, unspecified hip
Same as the full description in the CMS dataset.
Parent Code
M91.3
Pseudocoxalgia

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM91-M94Chondropathies
CategoryM91Juvenile osteochondrosis of hip and pelvis
This CodeM91.30Pseudocoxalgia, unspecified hip

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M91.30: its own notes plus those printed at M91, block M91-M94, and Chapter 13. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From M91 Juvenile osteochondrosis of hip and pelvis applies to 19 codes
  • slipped upper femoral epiphysis (nontraumatic) (M93.0-)
From Block M91-M94 Chondropathies applies to 212 codes
  • postprocedural chondropathies (M96.-)

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.

From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Notes

General instructions on how these codes are used.

From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name M91.30, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming M91.30: they are not reported together with it, unless the two conditions are unrelated.

  • M87 Osteonecrosis
    juvenile osteonecrosis (M91-M92) names M91-M92, which includes this code

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MUS028
Other specified bone disease and musculoskeletal deformities
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Hip Injuries and Disorders

Your hip is the joint where your femur (thigh bone) meets your pelvis (hip bone). There are two main parts: a ball at the end of the femur, which fits in a socket in the pelvis. Your hip is known as a ball-and-socket joint. This is because you have a ball at the end of your femur, and it fits into a socket in your pelvis.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert M91.30 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
732.1 Juv osteochondros pelvis
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About M91.30Overview

What is the ICD-10 code for pseudocoxalgia, unspecified hip?

The ICD-10-CM code for pseudocoxalgia, unspecified hip is M91.30 (sometimes written as M9130). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is M91.30 (Pseudocoxalgia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report pseudocoxalgia, unspecified hip on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does M91.30 group to?

When pseudocoxalgia, unspecified hip is the principal diagnosis on an inpatient stay, it groups to MS-DRG 554, 553, with relative weights from 0.8328 to 1.2492 depending on complications. Higher weights mean higher Medicare reimbursement.

Can M91.30 be reported with a code from M93.0?

Not as a rule. The Excludes1 note at M91, which applies to M91.30, lists "slipped upper femoral epiphysis (nontraumatic) (M93.0-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is the ICD-9 equivalent of M91.30?

Under the General Equivalence Mappings, pseudocoxalgia, unspecified hip converts to ICD-9-CM 732.1 (juv osteochondros pelvis). The mapping is approximate, so confirm the match fits the documentation.