2027 ICD-10-CM Diagnosis Code M93.033Acute on chronic slipped upper femoral epiphysis, stable (nontraumatic), unspecified hip
ICD-10-CM Codes›M00–M99›M91-M94›M93
- Billable — Valid for Submission
- Chronic Condition
M93.033 is a billable ICD-10-CM diagnosis code for acute on chronic slipped upper femoral epiphysis, stable (nontraumatic), 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. Coders also document this condition as non-traumatic acute-on-chronic slipped upper femoral epiphysis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified bone disease and musculoskeletal deformities.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Non-traumatic acute-on-chronic slipped upper femoral epiphysis
- Stable nontraumatic acute-on-chronic slipped upper femoral epiphysis
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to M93.033: its own notes plus those printed at M93.0, M93, 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.
- 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.
- 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)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
Notes
General instructions on how these codes are used.
- 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 M93.033, its category, or a range that includes it.
Excludes1 3
These codes carry an Excludes1 note naming M93.033: they are not reported together with it, unless the two conditions are unrelated.
- M91 Juvenile osteochondrosis of hip and pelvisslipped upper femoral epiphysis (nontraumatic) (M93.0-) names M93.0-, which includes this code
- S72.13 Apophyseal fracture of femurchronic (nontraumatic) slipped upper femoral epiphysis (M93.0-) names M93.0-, which includes this code
- S79.0 Physeal fracture of upper end of femurnontraumatic slipped upper femoral epiphysis (M93.0-) names M93.0-, which includes this code
Code First 1
These codes say to code first a condition named in the note, and M93.033 is one of the conditions named.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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 M93.033 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M93.033Overview
Is M93.033 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report acute on chronic slipped upper femoral epiphysis, stable (nontraumatic), unspecified hip on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does M93.033 group to?
When acute on chronic slipped upper femoral epiphysis, stable (nontraumatic), 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 M93.033 be reported with a code from M96?
Not as a rule. The Excludes1 note at block M91-M94, which applies to M93.033, lists "postprocedural chondropathies (M96.-)". 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).
Does M93.033 need an additional code?
When the condition applies, yes. The Use Additional Code note at M93.0, which applies to M93.033, reads: code for associated chondrolysis (M94.3). The additional code is reported after M93.033.
What is the ICD-9 equivalent of M93.033?
Under the General Equivalence Mappings, acute on chronic slipped upper femoral epiphysis, stable (nontraumatic), unspecified hip converts to ICD-9-CM 732.2 (femoral epiphysiolysis). The mapping is approximate, so confirm the match fits the documentation.
