M42.03 ICD-10-CA code: Juvenile osteochondrosis of spine, cervicothoracic region

M42.03 is the ICD-10-CA code for “Juvenile osteochondrosis of spine, cervicothoracic region” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

M42.03

Juvenile osteochondrosis of spine, cervicothoracic region

Short description: Juvnle osteochondr spine cervicothoracic

ICD-10-CA · Canada · Also written M4203

Notes for M42.03

As CIHI prints them, with any note M42.03 takes from the headings above it.

Includes

Calvé's diseaseScheuermann's diseaseFrom M42.0 Juvenile osteochondrosis of spine

Excludes

Conditions classified elsewhere.

Postural kyphosis (M40.0)From M42.0 Juvenile osteochondrosis of spine
Certain:• conditions originating in the perinatal period (P00-P96)• disorders of the temporomandibular joint (K07.6)• infectious and parasitic diseases (A00-B99)compartment syndrome (T79.6)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)

Note

The following fifth characters represent the following sites of involvement:0 Multiple sites1 Shoulder region: clavical , scapula — joint acromioclavicular, glenohumeral, sternoclavicular2 Upper arm: humerus — elbow joint,3 Forearm: radius , ulna — wrist joint,4 Hand: carpus, fingers, metacarpus — joints between these bones,5 Pelvic region and thigh: buttock , femur , pelvis — joint hip , sacroiliac6 Lower leg: fibula , tibia — knee joint7 Ankle and foot: metatarsus, tarsus, toes — other joints in foot8 Other:head neck ribs skull trunk vertebral column9 Site unspecifiedFrom Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)

Where M42.03 sits

1ChapterChapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
2Block M40-M54Dorsopathies
3Block M40-M43Deforming dorsopathies
4Category M42Spinal osteochondrosis
5Subcategory M42.0Juvenile osteochondrosis of spine
6Valid code M42.03Juvenile osteochondrosis of spine, cervicothoracic region

Source and release

Data release: ICD-10-CA · FY 2026–2027
Effective date: Apr 1, 2026
Publisher: CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See M42.03 in the CIHI source

Frequently asked questions

What does ICD-10-CA code M42.03 mean?

M42.03 is the ICD-10-CA code for “Juvenile osteochondrosis of spine, cervicothoracic region” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is M42.03 in ICD-10-CA?

M42.03 sits under M42.0 Juvenile osteochondrosis of spine, within M42 Spinal osteochondrosis, within M40-M43 Deforming dorsopathies, within M40-M54 Dorsopathies, within Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99).

What coding notes apply to M42.03?

ICD-10-CA lists Includes, Excludes, Note notes for M42.03, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

View M42.0