Is M91.0 a billable ICD-10-CM code?

Yes. M91.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does M91.0 sit in the tabular list?

Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Chondropathies (M91-M94).

What cannot be coded together with M91.0?

M91.0 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above M91.0 (M91) and apply to it just the same.

M91.0

M91.0 — Juvenile osteochondrosis of pelvis

Billable / specific codeICD-10-CM

M91.0 is a billable, specific ICD-10-CM code for juvenile osteochondrosis of pelvis. It is valid for submission on a claim.

Inclusion terms

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

Osteochondrosis (juvenile) of acetabulum
Osteochondrosis (juvenile) of iliac crest [Buchanan]
Osteochondrosis (juvenile) of ischiopubic synchondrosis [van Neck]
Osteochondrosis (juvenile) of symphysis pubis [Pierson]

Excludes1 inherited from the categories above M91.0

These are not written on M91.0, but they bind it: a note on a category applies to every code beneath it. Billing M91.0 with anything listed here is a denial.

Written on M91 — Juvenile osteochondrosis of hip and pelvis

slipped upper femoral epiphysis (nontraumatic) (M93.0-)

Risk adjustment

M91.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

M91.0 is named in 9 Medicare coverage policies — 2 listing it as supporting medical necessity, and 7 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A58865Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
A58883Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
A58893Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
A59374Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered

How M91.0 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to M91.0.

Buchanan's disease or osteochondrosis
Pierson's disease or osteochondrosis
Van Neck's disease or osteochondrosis
Osteochondrosis›acetabulum(juvenile)
Osteochondrosis›Buchanan's
Osteochondrosis›ilium, iliac crest(juvenile)
Osteochondrosis›ischiopubic synchondrosis
Osteochondrosis›pelvis(juvenile)
Osteochondrosis›Pierson's
Osteochondrosis›symphysis pubis(juvenile)
Osteochondrosis›van Neck's
Synchondrosis›ischiopubic

Code history

M91.0 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share M91. If M91.0 is not quite right, the correct code is usually one of these.

Questions about M91.0

Is M91.0 a billable ICD-10-CM code?: Yes. M91.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does M91.0 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Chondropathies (M91-M94).
What cannot be coded together with M91.0?: M91.0 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above M91.0 (M91) and apply to it just the same.