Q78.4

Q78.4: Enchondromatosis

Billable / specific codeICD-10-CMPOA exempt

Q78.4 is a billable, specific ICD-10-CM code for enchondromatosis. It is valid for submission on a claim.

Check Q78.4 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Maffucci's syndrome
Ollier's disease

Excludes2 inherited from the categories above Q78.4

Not part of this code, but both may be coded when both are present.

Written on Q78: Other osteochondrodysplasias

congenital myotonic chondrodystrophy (G71.13)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Q78.4 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A57204Billing and Coding: MRI and CT Scans of the Head and Neck

Alphabetic index entries that lead here

Dyschondroplasia(with hemangiomata)
Enchondromatosis(cartilaginous) (multiple)
Maffucci's syndrome
Ollier's disease
Chondrodysplasia›with hemangioma
Chondromatosis›internal
Osteochondromatosis›syndrome

Code history

Unchanged in every release from FY2024 to FY2027.