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ICD-10-CM

Surgical Diagnoses That Need Extra Detail in ICD-10-CM

These codes used to be one broad code each. Now they ask for side, site or type, and the code you pick depends on what the provider writes.

MedicalCore Coding3 min read
In this article

Some diagnosis codes that surgeons use all the time were once a single code with no detail. They have since been split by side, site or type. A code without that detail is either invalid (it isn't billable) or an "unspecified" code that invites a query. Each section below shows what to look for in the note.

Part 1 of 5

Pathological fracture of the pelvis: M80.0B- and M80.8B-

A pathological fracture happens in bone already weakened by disease, so it breaks with little or no injury. The osteoporosis codes for a fracture of the pelvis now carry the side and need a 7th character.

CodeMeaning
M80.0B1- / M80.0B2- / M80.0B9-Age-related osteoporosis with current pathological fracture, right / left / unspecified pelvis
M80.8B1- / M80.8B2- / M80.8B9-Other osteoporosis (for example, drug-induced) with current pathological fracture, right / left / unspecified pelvis

The 7th character is the same set used for other fractures:

7th characterEncounter
AInitial encounter for the fracture
DSubsequent encounter, routine healing
GSubsequent encounter, delayed healing
KSubsequent encounter, nonunion
PSubsequent encounter, malunion
SSequela

Example: an 80-year-old with age-related osteoporosis has a fracture of the left pelvis after stepping off a curb, and is seen for active treatment: M80.0B2A.

Part 2 of 5

Sepsis after a procedure: T81.44X-

When sepsis is a complication of a procedure, report T81.44X- (sepsis following a procedure) with the 7th character for the encounter (A, D or S), then a code for the infection's organism if known. A bloodstream infection caused by a central venous catheter has its own code: T80.211-.

Organism codes still matter. For example, A41.54 is sepsis due to Acinetobacter baumannii.

Part 3 of 5

Parkinson's disease: G20 is no longer billable

G20 is now a category, not a code. Pick one of these, based on whether the patient has dyskinesia (involuntary movements) and fluctuations (the medicine wearing off between doses):

CodeParkinson's disease
G20.A1Without dyskinesia, without mention of fluctuations
G20.A2Without dyskinesia, with fluctuations
G20.B1With dyskinesia, without mention of fluctuations
G20.B2With dyskinesia, with fluctuations
G20.CParkinsonism, unspecified

A surgeon placing a feeding tube for a Parkinson's patient may not record these details, even though the neurologist knows them. Code from the documentation for the encounter you're coding; if it doesn't say, query the surgeon rather than picking G20.C.

Part 4 of 5

Desmoid tumor by site: D48.110–D48.119

A desmoid tumor grows from connective tissue. It doesn't spread like a cancer, but it can grow into nearby tissue, most often the abdominal wall, shoulder or thigh. It used to be coded to D48.1; it now has its own codes by site.

CodeDesmoid tumor of
D48.110Head and neck
D48.111Chest wall
D48.112Inside the chest (intrathoracic)
D48.113Abdominal wall
D48.114Inside the abdomen (intra-abdominal)
D48.115Upper limb and shoulder girdle
D48.116Lower limb and pelvic girdle
D48.117Back
D48.118Other site
D48.119Unspecified site

Part 5 of 5

Family history of colon polyps: Z83.710–Z83.719

A family history of colon polyps can justify a colonoscopy sooner or more often than the usual screening schedule. The code now says what kind of polyp the relative had:

CodeFamily history of
Z83.710Adenomatous and serrated polyps
Z83.711Hyperplastic colon polyps
Z83.718Other colon polyps
Z83.719Colon polyps, unspecified

End of the article: check what you remember

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