ICD-10 Code for Infiltrate

The ICD-10-CM 2027 alphabetic index lists infiltrate, infiltration with the subterms below. More specific codes depend on the details documented, as listed in the official index (17 codes, 14 billable).

Index entries for Infiltrate

amyloid (generalized) (localized) – see Amyloidosis
calcareous NEC – R89.7
- localized – see Degeneration, by site
calcium salt – R89.7
cardiac
- fatty – see Degeneration, myocardial
- glycogenic – E74.02 – I43 [manifestation]
corneal – see Edema, cornea
eyelid – see Inflammation, eyelid
glycogen, glycogenic – see Disease, glycogen storage
heart, cardiac
- fatty – see Degeneration, myocardial
- glycogenic – E74.02 – I43 [manifestation]
inflammatory in vitreous – H43.89
kidney – N28.89
leukemic – see Leukemia
liver – K76.89
- fatty – see Fatty, liver NEC
- glycogen – E74.03 – K77 [manifestation] – see also Disease, glycogen storage
lung – R91.8
- eosinophilic – see Eosinophilia, pulmonary
lymphatic – C91.9- (header) – see also Leukemia, lymphatic
- gland – I88.9
muscle, fatty – M62.89
myocardium, myocardial
- fatty – see Degeneration, myocardial
- glycogenic – E74.02 – I43 [manifestation]
on chest x-ray – R91.8
pulmonary – R91.8
- with eosinophilia – see Eosinophilia, pulmonary
skin (lymphocytic) – L98.6
thymus (gland) (fatty) – E32.8
urine – R39.0
vesicant agent
- antineoplastic chemotherapy – T80.810 (header)
- other agent NEC – T80.818 (header)
vitreous body – H43.89

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.