All ICD10 Codes

M91

Non-Billable
ChapterM00–M99
Rankcategory
Official Description

Juvenile osteochondrosis of hip and pelvis

Use a more specific code (1 billable, 6 non-billable)
M91.0Juvenile osteochondrosis of pelvisM91.1Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes]has subcodesM91.2Coxa planahas subcodesM91.3Pseudocoxalgiahas subcodesM91.4Coxa magnahas subcodesM91.8Other juvenile osteochondrosis of hip and pelvishas subcodesM91.9Juvenile osteochondrosis of hip and pelvis, unspecifiedhas subcodes
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

CH13 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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)

M91-M94 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • postprocedural chondropathies (M96.-)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • slipped upper femoral epiphysis (nontraumatic) (M93.0-)

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M91-M94Chondropathies (M91-M94)
M91Juvenile osteochondrosis of hip and pelvisNot billable
M91.0Juvenile osteochondrosis of pelvisBillable
M91.1Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes]Subcodes
M91.2Coxa planaSubcodes
M91.3PseudocoxalgiaSubcodes
M91.4Coxa magnaSubcodes
M91.8Other juvenile osteochondrosis of hip and pelvisSubcodes
M91.9Juvenile osteochondrosis of hip and pelvis, unspecifiedSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M91:

blockM91-M94
Chondropathies (M91-M94)
View context instructions
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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