Effusion, unspecified foot

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2007 Added to the draft code set draft Effusion, unspecified foot

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from M25 Other joint disorder, not elsewhere classified

Excludes2 - not included here

abnormality of gait and mobility (R26.-)
acquired deformities of limb (M20-M21)
calcification of bursa (M71.4-)
calcification of shoulder (joint) (M75.3)
calcification of tendon (M65.2-)
difficulty in walking (R26.2)
temporomandibular joint disorder (M26.6-)

Inherited from the M20-M25 section Other joint disorders (M20-M25)

Excludes2 - not included here

joints of the spine (M40-M54)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Pitting
Swollen
Lipedema
Arthrocele
Tumefaction
Fluid > joint
Hydrarthrosis
Lesion > joint
Hydrops > joint
Swelling > ankle
Swelling > joint
Dropsy, dropsical
Retention > water
Disorder > articulation
Edema, edematous > joint
Disease, diseased > joint
Disorder > joint > effusion
Effusion > joint > ankle
Effusion > joint > foot joint

Codes in the same group

Code	Description	Status
M25.471	Effusion, right ankle	Valid
M25.472	Effusion, left ankle	Valid
M25.473	Effusion, unspecified ankle	Valid
M25.474	Effusion, right foot	Valid
M25.475	Effusion, left foot	Valid